ch04_The Consumer as an Individual
I_E_11e_Ch_04
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CHAPTER 4—TARIFFSMULTIPLE CHOICE1. The imposition of tariffs on imports results in deadweight welfare losses for the home economy.These losses consist of the:a. Protective effect plus consumption effectb. Redistribution effect plus revenue effectc. Revenue effect plus protective effectd. Consumption effect plus redistribution effectANS: A PTS: 12. Suppose that the United States eliminates its tariff on steel imports, permitting foreign-producedsteel to enter the U.S. market. Steel prices to U.S. consumers would be expected to:a. Increase, and the foreign demand for U.S. exports would increaseb. Decrease, and the foreign demand for U.S. exports would increasec. Increase, and the foreign demand for U.S. exports would decreased. Decrease, and the foreign demand for U.S. exports would decreaseANS: B PTS: 13. A $100 specific tariff provides home producers more protection from foreign competition when:a. The home market buys cheaper products rather than expensive productsb. It is applied to a commodity with many grade variationsc. The home demand for a good is elastic with respect to price changesd. It is levied on manufactured goods rather than primary productsANS: A PTS: 14. A lower tariff on imported aluminum would most likely benefit:a. Foreign producers at the expense of domestic consumersb. Domestic manufacturers of aluminumc. Domestic consumers of aluminumd. Workers in the domestic aluminum industryANS: C PTS: 15. When a government allows raw materials and other intermediate products to enter a country dutyfree, its tariff policy generally results in a:a. Effective tariff rate less than the nominal tariff rateb. Nominal tariff rate less than the effective tariff ratec. Rise in both nominal and effective tariff ratesd. Fall in both nominal and effective tariff ratesANS: B PTS: 16. Of the many arguments in favor of tariffs, the one that has enjoyed the most significant economicjustification has been the:a. Infant industry argumentb. Cheap foreign labor argumentc. Balance of payments argumentd. Domestic living standard argumentANS: A PTS: 17. The redistribution effect of an import tariff is the transfer of income from the domestic:a. Producers to domestic buyers of the goodb. Buyers to domestic producers of the goodc. Buyers to the domestic governmentd. Government to the domestic buyersANS: B PTS: 18. Which of the following is true concerning a specific tariff?a. It is exclusively used by the U.S. in its tariff schedules.b. It refers to a flat percentage duty applied to a good's market value.c. It is plagued by problems associated with assessing import product values.d. It affords less protection to home producers during eras of rising prices.ANS: D PTS: 19. The principal benefit of tariff protection goes to:a. Domestic consumers of the good producedb. Domestic producers of the good producedc. Foreign producers of the good producedd. Foreign consumers of the good producedANS: B PTS: 110. Which of the following policies permits a specified quantity of goods to be imported at one tariffrate and applies a higher tariff rate to imports above this quantity?a. Tariff quotab. Import tariffc. Specific tariffd. Ad valorem tariffANS: A PTS: 111. Assume the United States adopts a tariff quota on steel in which the quota is set at 2 million tons,the within-quota tariff rate equals 5 percent, and the over-quota tariff rate equals 10 percent.Suppose the U.S. imports 1 million tons of steel. The resulting revenue effect of the tariff quota would accrue to:a. The U.S. government onlyb. U.S. importing companies onlyc. Foreign exporting companies onlyd. The U.S. government and either U.S. importers or foreign exportersANS: A PTS: 112. When the production of a commodity does not utilize imported inputs, the effective tariff rate onthe commodity:a. Exceeds the nominal tariff rate on the commodityb. Equals the nominal tariff rate on the commodityc. Is less than the nominal tariff rate on the commodityd. None of the aboveANS: B PTS: 113. Developing nations often maintain that industrial countries permit raw materials to be importedat very low tariff rates while maintaining high tariff rates on manufactured imports. Which of the following refers to the above statement?a. Tariff-quota effectb. Nominal tariff effectc. Tariff escalation effectd. Protective tariff effectANS: C PTS: 114. Should the home country be "large" relative to the world, its imposition of a tariff on importswould lead to an increase in domestic welfare if the terms-of-trade effect exceeds the sum of the:a. Revenue effect plus redistribution effectb. Protective effect plus revenue effectc. Consumption effect plus redistribution effectd. Protective effect plus consumption effectANS: D PTS: 115. Should Canada impose a tariff on imports, one would expect Canada's:a. Terms of trade to improve and volume of trade to decreaseb. Terms of trade to worsen and volume of trade to decreasec. Terms of trade to improve and volume of trade to increased. Terms of trade to worsen and volume of trade to increaseANS: A PTS: 116. A beggar-thy-neighbor policy is the imposition of:a. Free trade to increase domestic productivityb. Trade barriers to increase domestic demand and employmentc. Import tariffs to curb domestic inflationd. Revenue tariffs to make products cheaper for domestic consumersANS: B PTS: 117. A problem encountered when implementing an "infant industry" tariff is that:a. Domestic consumers will purchase the foreign good regardless of the tariffb. Political pressure may prevent the tariff's removal when the industry maturesc. Most industries require tariff protection when they are matured. Labor unions will capture the protective effect in higher wagesANS: B PTS: 118. Tariffs are not defended on the ground that they:a. Improve the terms of trade of foreign nationsb. Protect jobs and reduce unemploymentc. Promote growth and development of young industriesd. Prevent overdependence of a country on only a few industriesANS: A PTS: 119. The deadweight loss of a tariff:a. Is a social loss since it promotes inefficient productionb. Is a social loss since it reduces the revenue for the governmentc. Is not a social loss because society as a whole doesn't pay for the lossd. Is not a social loss since only business firms suffer revenue lossesANS: A PTS: 120. Which of the following is a fixed percentage of the value of an imported product as it enters thecountry?a. Specific tariffb. Ad valorem tariffc. Nominal tariffd. Effective tariffANS: B PTS: 121. A tax of 20 cents per unit of imported cheese would be an example of:a. Compound tariffb. Effective tariffc. Ad valorem tariffd. Specific tariffANS: D PTS: 122. A tax of 15 percent per imported item would be an example of:a. Ad valorem tariffb. Specific tariffc. Effective tariffd. Compound tariffANS: A PTS: 123. Which type of tariff is not used by the American government?a. Import tariffb. Export tariffc. Specific tariffd. Ad valorem tariffANS: B PTS: 124. Which trade policy results in the government levying a "two-tier" tariff on imported goods?a. Tariff quotab. Nominal tariffc. Effective tariffd. Revenue tariffANS: A PTS: 125. If we consider the impact on both consumers and producers, then protection of the steel industryis:a. In the interest of the United States as a whole, but not in the interest of the state ofPennsylvaniab. In the interest of the United States as a whole and in the interest of the state of Pennsylvaniac. Not in the interest of the United States as a whole, but it might be in the interest of the stateof Pennsylvaniad. Not in the interest of the United States as a whole, nor in the interest of the state ofPennsylvaniaANS: C PTS: 126. If I purchase a stereo from South Korea, I obtain the stereo and South Korea obtains the dollars.But if I purchase a stereo produced in the United States, I obtain the stereo and the dollars remain in America. This line of reasoning is:a. Valid for stereos, but not for most products imported by the United Statesb. Valid for most products imported by the United States, but not for stereosc. Deceptive since Koreans eventually spend the dollars on U.S. goodsd. Deceptive since the dollars spent on a stereo built in the United States eventually wind upoverseasANS: C PTS: 127. The most vocal political pressure for tariffs is generally made by:a. Consumers lobbying for export tariffsb. Consumers lobbying for import tariffsc. Producers lobbying for export tariffsd. Producers lobbying for import tariffsANS: D PTS: 128. If we consider the interests of both consumers and producers, then a policy of tariff reduction inthe U.S. auto industry is:a. In the interest of the United States as a whole, but not in the interest of auto-producing statesb. In the interest of the United States as a whole, and in the interest of auto-producing statesc. Not in the interest of the United States as a whole, nor in the interest of auto-producingstatesd. Not in the interest of the United States as a whole, but is in the interest of auto-producingstatesANS: A PTS: 129. Free traders point out that:a. There is usually an efficiency gain from having tariffsb. There is usually an efficiency loss from having tariffsc. Producers lose from tariffs at the expense of consumersd. Producers lose from tariffs at the expense of the governmentANS: B PTS: 130. A decrease in the import tariff will result in:a. An increase in imports but a decrease in domestic productionb. A decrease in imports but an increase in domestic productionc. An increase in price but a decrease in quantity purchasedd. A decrease in price and a decrease in quantity purchasedANS: A PTS: 1Figure 4.1 illustrates the demand and supply schedules for pocket calculators in Mexico, a "small" nation that is unable to affect the world price.Figure 4.1. Import Tariff Levied by a "Small" Country31. Consider Figure 4.1. In the absence of trade, Mexico produces and consumes:a. 10 calculatorsb. 40 calculatorsc. 60 calculatorsd. 80 calculatorsANS: C PTS: 132. Consider Figure 4.1. In the absence of trade, Mexico's producer surplus and consumer surplusrespectively equal:a. $120, $240b. $180, $180c. $180, $320d. $240, $240ANS: B PTS: 133. Consider Figure 4.1. With free trade, Mexico imports:a. 40 calculatorsb. 60 calculatorsc. 80 calculatorsd. 100 calculatorsANS: D PTS: 134. Consider Figure 4.1. With free trade, the total value of Mexico's imports equal:a. $220b. $260c. $290d. $300ANS: D PTS: 135. Consider Figure 4.1. With free trade, Mexico's producer surplus and consumer surplusrespectively equal:a. $5, $605b. $25, $380c. $45, $250d. $85, $195ANS: A PTS: 136. Consider Figure 4.1. With a per-unit tariff of $3, the quantity of imports decreases to:a. 20 calculatorsb. 40 calculatorsc. 50 calculatorsd. 70 calculatorsANS: B PTS: 137. According to Figure 4.1, the loss in Mexican consumer surplus due to the tariff equals:a. $225b. $265c. $285d. $325ANS: C PTS: 138. According to Figure 4.1, the tariff results in the Mexican government collecting:a. $100b. $120c. $140d. $160ANS: B PTS: 139. According to Figure 4.1, Mexican manufacturers gain ____ because of the tariff.a. $75b. $85c. $95d. $105ANS: A PTS: 140. According to Figure 4.1, the deadweight cost of the tariff totals:a. $60b. $70c. $80d. $90ANS: D PTS: 141. Consider Figure 4.1. The tariff would be prohibitive (i.e., eliminate imports) if it equaled:a. $2b. $3c. $4d. $5ANS: D PTS: 1Assume the United States is a large consumer of steel that is able to influence the world price. Its demand and supply schedules are respectively denoted by D U.S. and S U.S. in Figure 4.2. Theoverall (United States plus world) supply schedule of steel is denoted by S U.S.+W.Figure 4.2. Import Tariff Levied by a "Large" Country42. Consider Figure 4.2. With free trade, the United States achieves market equilibrium at a price of$____. At this price, ____ tons of steel are produced by U.S. firms, ____ tons are bought by U.S.buyers, and ____ tons are imported.a. $450, 5 tons, 60 tons, 55 tonsb. $475, 10 tons, 50 tons, 40 tonsc. $525, 5 tons, 60 tons, 55 tonsd. $630, 30 tons, 30 tons, 0 tonsANS: B PTS: 143. Consider Figure 4.2. Suppose the United States imposes a tariff of $100 on each ton of steelimported. With the tariff, the price of steel rises to $____ and imports fall to ____ tons.a. $550, 20 tonsb. $550, 30 tonsc. $575, 20 tonsd. $575, 30 tonsANS: A PTS: 144. Consider Figure 4.2. Of the $100 tariff, $____ is passed on to the U.S. consumer via a higherprice, while $____ is borne by the foreign exporter; the U.S. terms of trade:a. $25, $75, improveb. $25, $75, worsenc. $75, $25, improved. $75, $25, worsenANS: C PTS: 145. Referring to Figure 4.2, the tariff's deadweight welfare loss to the United States totals:a. $450b. $550c. $650d. $750ANS: D PTS: 146. According to Figure 4.2, the tariff's terms-of-trade effect equals:a. $300b. $400c. $500d. $600ANS: C PTS: 147. According to Figure 4.2, the tariff leads to the overall welfare of the United States:a. Rising by $250b. Rising by $500c. Falling by $250d. Falling by $500ANS: C PTS: 148. Suppose that the production of $500,000 worth of steel in the United States requires $100,000worth of iron ore. The U.S. nominal tariff rates for importing these goods are 15 percent for steel and 5 percent for iron ore. Given this information, the effective rate of protection for the U.S.steel industry is approximately:a. 6 percentb. 12 percentc. 18 percentd. 24 percentANS: C PTS: 149. Suppose that the production of a $30,000 automobile in Canada requires $10,000 worth of steel.The Canadian nominal tariff rates for importing these goods are 25 percent for automobiles and10 percent for steel. Given this information, the effective rate of protection for the Canadianautomobile industry is approximately:a. 15 percentb. 32 percentc. 48 percentd. 67 percentANS: B PTS: 1Exhibit 4.1Assume that the United States imports automobiles from South Korea at a price of $20,000 per vehicle and that these vehicles are subject to an import tariff of 20 percent. Also assume that U.S.components are used in the vehicles assembled by South Korea and that these components have a value of $10,000.50. Refer to Exhibit 4.1. In the absence of the Offshore Assembly Provision of U.S. tariff policy, theprice of an imported vehicle to the U.S. consumer after the tariff has been levied is:a. $22,000b. $23,000c. $24,000d. $25,000ANS: C PTS: 151. Refer to Exhibit 4.1. Under the Offshore Assembly Provision of U.S. tariff policy, the price of animported vehicle to the U.S. consumer after the tariff has been levied is:a. $22,000b. $23,000c. $24,000d. $25,000ANS: A PTS: 152. Suppose an importer of steel is required to pay a tariff of $20 per ton plus 5 percent of the valueof steel. This is an example of a (an):a. Specific tariffb. Ad valorem tariffc. Compound tariffd. Tariff quotaANS: C PTS: 153. A compound tariff is a combination of a (an):a. Tariff quota and a two-tier tariffb. Revenue tariff and a protective tariffc. Import tariff and an export tariffd. Specific tariff and an ad valorem tariffANS: D PTS: 1Table 4.1. Production Costs and Prices of Imported and Domestic VCRsImported VCRs Domestic VCRs Component parts $150 Imported component parts $150 Assembly cost/profit 50 Assembly cost 50 Nominal tariff 25 Profit 25 Import price Domestic priceafter tariff 225 after tariff 22554. Consider Table 4.1. Prior to the tariff, the total price of domestically-produced VCRs is:a. $150b. $200c. $225d. $250ANS: B PTS: 155. Consider Table 4.1. Prior to the tariff, the total price of imported VCRs is:a. $150b. $200c. $225d. $235ANS: B PTS: 156. Consider Table 4.1. The nominal tariff rate on imported VCRs equals:a. 11.1 percentb. 12.5 percentc. 16.7 percentd. 50.0 percentANS: B PTS: 157. Consider Table 4.1. Prior to the tariff, domestic value added equals:a. $25b. $50c. $75d. $100ANS: B PTS: 158. Consider Table 4.1. After the tariff, domestic value added equals:a. $25b. $50c. $75d. $100ANS: C PTS: 159. Consider Table 4.1. The effective tariff rate equals:a. 11.1 percentb. 16.7 percentc. 50.0 percentd. 100.0 percentANS: C PTS: 160. If the domestic value added before an import tariff for a product is $500 and the domestic valueadded after the tariff is $550, the effective rate of protection is:a. 5 percentb. 8 percentc. 10 percentd. 15 percentANS: C PTS: 161. When a tariff on imported inputs exceeds that on the finished good,a. The nominal tariff rate on the finished product would tend to overstate its protective effectb. The nominal tariff rate would tend to understate it's protective effectc. It is impossible to determine the protective effect of a tariffd. Tariff escalation occursANS: A PTS: 162. The offshore assembly provision in the U.S.a. Provides favorable treatment to U.S. trading partnersb. Discriminates against primary product importersc. Provides favorable treatment to products assembled abroad from U.S. manufacturedcomponentsd. Hurts the U.S. consumerANS: C PTS: 163. Arguments for U.S. trade restrictions include all of the following excepta. Job protectionb. Infant industry supportc. Maintenance of domestic living standardd. Improving incomes for developing countriesANS: D PTS: 164. For the United States, a foreign trade zone (FTZ) isa. A site within the United Statesb. A site outside the United Statesc. Always located in poorer developing countriesd. Is used to discourage tradeANS: A PTS: 1TRUE/FALSE1. To protect domestic producers from foreign competition, the U.S. government levies both importtariffs and export tariffs.ANS: F PTS: 12. With a compound tariff, a domestic importer of an automobile might be required to pay a duty of$200 plus 4 percent of the value of the automobile.ANS: T PTS: 13. With a specific tariff, the degree of protection afforded domestic producers varies directly withchanges in import prices.ANS: F PTS: 14. During a business recession, when cheaper products are purchased, a specific tariff providesdomestic producers a greater amount of protection against import-competing goods.ANS: T PTS: 15. A ad valorem tariff provides domestic producers a declining degree of protection againstimport-competing goods during periods of changing prices.ANS: F PTS: 16. With a compound duty, its "specific" portion neutralizes the cost disadvantage of domesticmanufacturers that results from tariff protection granted to domestic suppliers of raw materials, and the "ad valorem" portion of the duty grants protection to the finished-goods industry.ANS: T PTS: 17. The nominal tariff rate signifies the total increase in domestic productive activities compared towhat would occur under free-trade conditions.ANS: F PTS: 18. When material inputs enter a country at a very low duty while the final imported product isprotected by a high duty, the result tends to be a high rate of protection for domestic producers of the final product.ANS: T PTS: 19. According to the tariff escalation effect, industrial countries apply low tariffs to imports offinished goods and high tariffs to imports of raw materials.ANS: F PTS: 110. Under the Offshore Assembly Provision of U.S. tariff policy, U.S. import duties apply only to thevalue added in the foreign assembly process, provided that U.S.-made components are used by overseas companies in their assembly operations.ANS: T PTS: 111. Bonded warehouses and foreign trade zones have the effect of allowing domestic importers topostpone and prorate over time their import duty obligations.ANS: T PTS: 112. A nation whose imports constitute a very small portion of the world market supply is a price taker,facing a constant world price for its import commodity.ANS: T PTS: 113. Graphically, consumer surplus is represented by the area above the demand curve and below theproduct's market price.ANS: F PTS: 114. Producer surplus is the revenue producers receive over and above the minimum necessary forproduction.ANS: T PTS: 115. For a "small" country, a tariff raises the domestic price of an imported product by the full amountof the duty.ANS: T PTS: 116. Although an import tariff provides the domestic government additional tax revenue, it benefitsdomestic consumers at the expense of domestic producers.ANS: F PTS: 117. An import tariff reduces the welfare of a "small" country by an amount equal to the redistributioneffect plus the revenue effect.ANS: F PTS: 118. The deadweight losses of an import tariff consist of the protection effect plus the consumptioneffect.ANS: T PTS: 119. The redistribution effect is the transfer of producer surplus to domestic consumers of theimport-competing product.ANS: F PTS: 120. As long as it is assumed that a nation accounts for a negligible portion of international trade, itslevying an import tariff necessarily increases its overall welfare.ANS: F PTS: 121. Changes in a "large" country's economic conditions or trade policies can affect the terms atwhich it trades with other countries.ANS: T PTS: 122. A "large" country, that levies a tariff on imports, cannot improve the terms at which it trades withother countries.ANS: F PTS: 123. For a "large" country, a tariff on an imported product may be partially absorbed by the domesticconsumer via a higher purchase price and partially absorbed by the foreign producer via a lower export price.ANS: T PTS: 124. If a "large" country levies a tariff on an imported good, its overall welfare increases if themonetary value of the tariff's consumption effect plus protective effect exceeds the monetary value of the terms-of-trade effect.ANS: F PTS: 125. If a "small" country levies a tariff on an imported good, its overall welfare increases if themonetary value of the tariff's consumption effect plus protective effect is less than the monetary value of the terms-of-trade effect.ANS: F PTS: 126. A tariff on steel imports tends to improve the competitiveness of domestic automobilecompanies.ANS: F PTS: 127. If a tariff reduces the quantity of Japanese autos imported by the United States, over time itreduces the ability of Japan to import goods from the United States.ANS: T PTS: 128. A compound tariff permits a specified amount of goods to be imported at one tariff rate while anyimports above this amount are subjected to a higher tariff rate.ANS: F PTS: 129. A tariff can be thought of as a tax on imported goods.ANS: T PTS: 130. Although tariffs on imported steel may lead to job gains for domestic steel workers, they can leadto job losses for domestic auto workers.ANS: T PTS: 131. Relatively low wages in Mexico make it impossible for U.S. manufacturers of labor-intensivegoods to compete against Mexican manufacturers.ANS: F PTS: 132. According to the infant-industry argument, temporary tariff protection granted to an infantindustry will help it become competitive in the world market; when internationalcompetitiveness is achieved, the tariff should be removed.ANS: T PTS: 1Exhibit 4.2In the absence of international trade, assume that the equilibrium price and quantity of motorcycles in Canada is $14,000 and 10 units respectively. Assuming that Canada is a small country that is unable to affect the world price of motorcycles, suppose its market is opened to international trade. As a result, the price of motorcycles falls to $12,000 and the total quantity demanded rises to 14 units; out of this total, 6 units are produced in Canada while 8 units are imported. Now assume that the Canadian government levies an import tariff of $1,000 on motorcycles.33. Refer to Exhibit 4.2. As a result of the tariff, the price of imported motorcycles equals $13,000and imports total 4 cycles.ANS: T PTS: 134. Refer to Exhibit 4.2. The tariff leads to an increase in Canadian consumer surplus totaling$11,000.ANS: F PTS: 135. Refer to Exhibit 4.2. The tariff's redistribution effect equals $7,000.ANS: T PTS: 136. Refer to Exhibit 4.2. The tariff's revenue effect equals $6,000.ANS: F PTS: 137. Refer to Exhibit 4.2. All of the import tariff is shifted to the Canadian consumer via a higher priceof motorcycles.ANS: T PTS: 138. Refer to Exhibit 4.2. The tariff leads to a deadweight welfare loss for Canada totaling $1,000.ANS: F PTS: 139. Unlike a specific tariff, an ad valorem tariff differentiates between commodities with differentvalues.ANS: T PTS: 140. A limitation of a specific tariff is that it provides a constant level of protection for domesticcommodities regardless of fluctuations in their prices over time.ANS: F PTS: 141. A tariff quota is a combination of a specific tariff and an ad valorem tariff.ANS: F PTS: 142. A specific tariff is expressed as a fixed percentage of the total value of an imported product.ANS: F PTS: 143. The protective effect of a tariff occurs to the extent that less efficient domestic production issubstituted for more efficient foreign production.ANS: T PTS: 144. A tariff can increase the welfare of a "large" levying country if the favorable terms-of-tradeeffect more than offsets the unfavorable protective effect and consumption effect.ANS: T PTS: 145. If the world price of steel is $600 per ton, a specific tariff of $120 per ton is equivalent to an advalorem tariff of 25 percent.ANS: F PTS: 146. An import tariff will worsen the terms of trade for a "small" country but improve the terms oftrade for a "large" country.ANS: F PTS: 147. Suppose that the tariff on imported steel is 40 percent, the tariff on imported iron ore is 20 percent,and 30 percent of the cost of producing a ton of steel consists of the iron ore it contains. The effective rate of protection of steel is approximately 49 percent.ANS: T PTS: 1。
消费主义的英文文章
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消费主义的英文文章The positive and negative effects of consumerismIn the era of globalization, consumerism as a value and way of life is exerting its influence through mass communication. Facing the impact of the spread of consumerism, seeking benefits and avoiding harm, is of great significance for building a healthy consumption culture.The impact of consumerism applied to journalism and communication studies is extensive and complex. It adapts to the development path of popular culture and reflects the development and changes of consumer demand. Specifically, its positive effects lie in the following points:Firstly, consumerism is a cultural phenomenon in the process of globalization and has its rational side. Consumerism has a positive significance in promoting socioeconomic development and unleashing human desires, reflecting a concern for real life. It is also a manifestation of an open political and economic system, a stable social environment, and a relatively affluent material life.Secondly, it has had a positive impact on the news dissemination media itself in various aspects. From the perspective of dissemination content, consumerism has expanded the reporting space of the media. The media has expanded from the original fields of politics, economy, education, international affairs, etc. to all aspects of life, making the content more rich and colorful; From the perspective of social functions, the shift of media from educational to service-oriented has strengthened the affinity between media and audiences. Media has become more popular and lifestyle oriented, and its diverse social functions have also been developed.Thirdly, for the audience, consumerism is based on meeting their many material and spiritual needs. Consumerism changes the original meaning and usage concepts of goods by adding new images and symbols. This image and symbol cleverly connects people's inner desire for freedom and enjoyment with material reality, igniting this suppressed desire and making people feel an unprecedented novelty and satisfaction.Under the influence of global consumerism, we should also remain vigilant about the negative effects of consumerism.Firstly, consumerism has internalized into news consumerism in the field of media activities, and news professionalism is constantly being eroded by news consumerism. Under the concept of news consumption, media is driven by commercial logic. The media is keen on news planning and hype based on market sales, resulting in a large number of false news, paid news, false advertising, and other phenomena, which obscure and squeeze the public and public welfare nature of the media, seriously affecting the audience's understanding of social reality and bringing harm to society.Secondly, the audience immersed in consumerism is becoming increasingly one-dimensional individuals. Marcuse pointed out in "The Unidirectional Man" that the developed industrial society has transformed into a "one-sided society", in which only "one-sided people" with "one-sided thinking" are active. Unilateral people only know about material enjoyment and lose their spiritual pursuit. They can only submit to reality and cannot criticize it. They only know howto accept reality purely, blindly affirm it, and fully integrate themselves into reality. Consumerism is based on the individual and their desires, viewing enjoyment and entertainment as the realization of life value, constantly providing a stimulated consumption desire, and gradually causing the audience to fall into an endless pursuit of false needs, losing the inertia of thinking and reflection, as well as the rational and discerning ability of criticism, ultimately being dominated by commodity fetishism, Increasingly becoming a "one-dimensional person" as described by Marcuse.Thirdly, a large number of advertisements and reports on daily life consumption not only stimulate consumption and stimulate the reproduction of social goods, but also create a luxurious atmosphere of hedonism, objectively dissolving the national tradition of diligence, frugality, simplicity, and hard work.In short, the application of consumerism in the field of journalism and communication has had a rich and complex impact. Understanding this impact requires rational thinking from a dialectical perspective, recognizing its rationality while also criticizing and raising vigilance against its negative effects, promoting the overall evolution and development of society towards progress.译文:在全球化时代,消费主义作为一种价值观念和生活方式正在通过大众传播发挥着影响。
CH04-Supply Chain Management
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• Counteract Change the way suppliers forecast product demand by making this information available at all levels of the supply chain. Share real demand information (POS terminals) Eliminate order batching. Stabilize pricing. Eliminate gaming.
• Supply Chain Management is the vital business function that coordinates all of the network links. Coordinates movement of goods through supply chain from suppliers to manufacturers to distributors. Promotes information sharing along chain like forecasts, sales data, and promotions.
traffic management – arranging the method of shipment for both incoming and outgoing products or material distribution management – movement of material from manufacturer to the customer
• Bullwhip effect - the inaccurate or distorted demand information created in the supply chain
计量经济学导论ch04习题答案
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28CHAPTER 4TEACHING NOTESAt the start of this chapter is good time to remind students that a specific error distribution played no role in the results of Chapter 3. That is because only the first two moments were derived under the full set of Gauss-Markov assumptions. Nevertheless, normality is needed to obtain exact normal sampling distributions (conditional on the explanatory variables). Iemphasize that the full set of CLM assumptions are used in this chapter, but that in Chapter 5 we relax the normality assumption and still perform approximately valid inference. One could argue that the classical linear model results could be skipped entirely, and that only large-sample analysis is needed. But, from a practical perspective, students still need to know where the t distribution comes from because virtually all regression packages report t statistics and obtain p -values off of the t distribution. I then find it very easy to cover Chapter 5 quickly, by just saying we can drop normality and still use t statistics and the associated p -values as beingapproximately valid. Besides, occasionally students will have to analyze smaller data sets, especially if they do their own small surveys for a term project.It is crucial to emphasize that we test hypotheses about unknown population parameters. I tellmy students that they will be punished if they write something like H 0:1ˆβ = 0 on an exam or, even worse, H 0: .632 = 0.One useful feature of Chapter 4 is its illustration of how to rewrite a population model so that it contains the parameter of interest in testing a single restriction. I find this is easier, both theoretically and practically, than computing variances that can, in some cases, depend onnumerous covariance terms. The example of testing equality of the return to two- and four-year colleges illustrates the basic method, and shows that the respecified model can have a useful interpretation. Of course, some statistical packages now provide a standard error for linear combinations of estimates with a simple command, and that should be taught, too.One can use an F test for single linear restrictions on multiple parameters, but this is less transparent than a t test and does not immediately produce the standard error needed for aconfidence interval or for testing a one-sided alternative. The trick of rewriting the population model is useful in several instances, including obtaining confidence intervals for predictions in Chapter 6, as well as for obtaining confidence intervals for marginal effects in models with interactions (also in Chapter 6).The major league baseball player salary example illustrates the difference between individual and joint significance when explanatory variables (rbisyr and hrunsyr in this case) are highly correlated. I tend to emphasize the R -squared form of the F statistic because, in practice, it is applicable a large percentage of the time, and it is much more readily computed. I do regret that this example is biased toward students in countries where baseball is played. Still, it is one of the better examples of multicollinearity that I have come across, and students of all backgrounds seem to get the point.29SOLUTIONS TO PROBLEMS4.1 (i) H 0:3β = 0. H 1:3β > 0.(ii) The proportionate effect on n salaryis .00024(50) = .012. To obtain the percentage effect, we multiply this by 100: 1.2%. Therefore, a 50 point ceteris paribus increase in ros is predicted to increase salary by only 1.2%. Practically speaking, this is a very small effect for such a large change in ros .(iii) The 10% critical value for a one-tailed test, using df = ∞, is obtained from Table G.2 as 1.282. The t statistic on ros is .00024/.00054 ≈ .44, which is well below the critical value. Therefore, we fail to reject H 0 at the 10% significance level.(iv) Based on this sample, the estimated ros coefficient appears to be different from zero only because of sampling variation. On the other hand, including ros may not be causing any harm; it depends on how correlated it is with the other independent variables (although these are very significant even with ros in the equation).4.2 (i) and (iii) generally cause the t statistics not to have a t distribution under H 0.Homoskedasticity is one of the CLM assumptions. An important omitted variable violates Assumption MLR.3. The CLM assumptions contain no mention of the sample correlations among independent variables, except to rule out the case where the correlation is one.4.3 (i) While the standard error on hrsemp has not changed, the magnitude of the coefficient has increased by half. The t statistic on hrsemp has gone from about –1.47 to –2.21, so now the coefficient is statistically less than zero at the 5% level. (From Table G.2 the 5% critical value with 40 df is –1.684. The 1% critical value is –2.423, so the p -value is between .01 and .05.)(ii) If we add and subtract 2βlog(employ ) from the right-hand-side and collect terms, we havelog(scrap ) = 0β + 1βhrsemp + [2βlog(sales) – 2βlog(employ )] + [2βlog(employ ) + 3βlog(employ )] + u = 0β + 1βhrsemp + 2βlog(sales /employ ) + (2β + 3β)log(employ ) + u ,where the second equality follows from the fact that log(sales /employ ) = log(sales ) – log(employ ). Defining 3θ ≡ 2β + 3β gives the result.30(iii) No. We are interested in the coefficient on log(employ ), which has a t statistic of .2, which is very small. Therefore, we conclude that the size of the firm, as measured by employees, does not matter, once we control for training and sales per employee (in a logarithmic functional form).(iv) The null hypothesis in the model from part (ii) is H 0:2β = –1. The t statistic is [–.951 – (–1)]/.37 = (1 – .951)/.37 ≈ .132; this is very small, and we fail to reject whether we specify a one- or two-sided alternative.4.4 (i) In columns (2) and (3), the coefficient on profmarg is actually negative, although its t statistic is only about –1. It appears that, once firm sales and market value have been controlled for, profit margin has no effect on CEO salary.(ii) We use column (3), which controls for the most factors affecting salary. The t statistic on log(mktval ) is about 2.05, which is just significant at the 5% level against a two-sided alternative. (We can use the standard normal critical value, 1.96.) So log(mktval ) is statistically significant. Because the coefficient is an elasticity, a ceteris paribus 10% increase in market value is predicted to increase salary by 1%. This is not a huge effect, but it is not negligible, either.(iii) These variables are individually significant at low significance levels, with t ceoten ≈ 3.11 and t comten ≈ –2.79. Other factors fixed, another year as CEO with the company increases salary by about 1.71%. On the other hand, another year with the company, but not as CEO, lowers salary by about .92%. This second finding at first seems surprising, but could be related to the “superstar” effect: firms that hire CEOs from outside the company often go after a small pool of highly regarded candidates, and salaries of these people are bid up. More non-CEO years with a company makes it less likely the person was hired as an outside superstar.4.5 (i) With df = n – 2 = 86, we obtain the 5% critical value from Table G.2 with df = 90.Because each test is two-tailed, the critical value is 1.987. The t statistic for H 0:0β = 0 is about -.89, which is much less than 1.987 in absolute value. Therefore, we fail to reject 0β = 0. The t statistic for H 0: 1β = 1 is (.976 – 1)/.049 ≈ -.49, which is even less significant. (Remember, we reject H 0 in favor of H 1 in this case only if |t | > 1.987.)(ii) We use the SSR form of the F statistic. We are testing q = 2 restrictions and the df in the unrestricted model is 86. We are given SSR r = 209,448.99 and SSR ur = 165,644.51. Therefore,(209,448.99165,644.51)8611.37,165,644.512F −⎛⎞=⋅≈⎜⎟⎝⎠which is a strong rejection of H 0: from Table G.3c, the 1% critical value with 2 and 90 df is 4.85.31(iii) We use the R -squared form of the F statistic. We are testing q = 3 restrictions and there are 88 – 5 = 83 df in the unrestricted model. The F statistic is [(.829 – .820)/(1 – .829)](83/3) ≈ 1.46. The 10% critical value (again using 90 denominator df in Table G.3a) is 2.15, so we fail to reject H 0 at even the 10% level. In fact, the p -value is about .23.(iv) If heteroskedasticity were present, Assumption MLR.5 would be violated, and the F statistic would not have an F distribution under the null hypothesis. Therefore, comparing the F statistic against the usual critical values, or obtaining the p -value from the F distribution, would not be especially meaningful.4.6 (i) We need to compute the F statistic for the overall significance of the regression with n = 142 and k = 4: F = [.0395/(1 – .0395)](137/4) ≈ 1.41. The 5% critical value with 4 numerator df and using 120 for the numerator df , is 2.45, which is well above the value of F . Therefore, we fail to reject H 0: 1β = 2β = 3β = 4β = 0 at the 10% level. No explanatory variable isindividually significant at the 5% level. The largest absolute t statistic is on dkr , t dkr ≈ 1.60, which is not significant at the 5% level against a two-sided alternative.(ii) The F statistic (with the same df ) is now [.0330/(1 – .0330)](137/4) ≈ 1.17, which is even lower than in part (i). None of the t statistics is significant at a reasonable level.(iii) We probably should not use the logs, as the logarithm is not defined for firms that have zero for dkr or eps . Therefore, we would lose some firms in the regression.(iv) It seems very weak. There are no significant t statistics at the 5% level (against a two-sided alternative), and the F statistics are insignificant in both cases. Plus, less than 4% of the variation in return is explained by the independent variables.4.7 (i) .412 ± 1.96(.094), or about .228 to .596.(ii) No, because the value .4 is well inside the 95% CI.(iii) Yes, because 1 is well outside the 95% CI.4.8 (i) With df = 706 – 4 = 702, we use the standard normal critical value (df = ∞ in Table G.2), which is 1.96 for a two-tailed test at the 5% level. Now t educ = −11.13/5.88 ≈ −1.89, so |t educ | = 1.89 < 1.96, and we fail to reject H 0: educ β = 0 at the 5% level. Also, t age ≈ 1.52, so age is also statistically insignificant at the 5% level.(ii) We need to compute the R -squared form of the F statistic for joint significance. But F = [(.113 − .103)/(1 − .113)](702/2) ≈ 3.96. The 5% critical value in the F 2,702 distribution can be obtained from Table G.3b with denominator df = ∞: cv = 3.00. Therefore, educ and age are jointly significant at the 5% level (3.96 > 3.00). In fact, the p -value is about .019, and so educ and age are jointly significant at the 2% level.32(iii) Not really. These variables are jointly significant, but including them only changes the coefficient on totwrk from –.151 to –.148.(iv) The standard t and F statistics that we used assume homoskedasticity, in addition to the other CLM assumptions. If there is heteroskedasticity in the equation, the tests are no longer valid.4.9 (i) H 0:3β = 0. H 1:3β ≠ 0.(ii) Other things equal, a larger population increases the demand for rental housing, which should increase rents. The demand for overall housing is higher when average income is higher, pushing up the cost of housing, including rental rates.(iii) The coefficient on log(pop ) is an elasticity. A correct statement is that “a 10% increase in population increases rent by .066(10) = .66%.”(iv) With df = 64 – 4 = 60, the 1% critical value for a two-tailed test is 2.660. The t statistic is about 3.29, which is well above the critical value. So 3β is statistically different from zero at the 1% level.4.10 (i) We use Property VAR.3 from Appendix B: Var(1ˆβ − 32ˆβ) = Var (1ˆβ) + 9 Var (2ˆβ) – 6 Cov (1ˆβ,2ˆβ).(ii) t = (1ˆβ− 32ˆβ − 1)/se(1ˆβ− 32ˆβ), so we need the standard error of 1ˆβ − 32ˆβ.(iii) Because1θ = 1β – 3β2, we can write 1β = 1θ + 3β2. Plugging this into the population model gives y = 0β + (1θ + 3β2)x 1 + 2βx 2 + 3βx 3 + u = 0β + 1θx 1 + 2β(3x 1 + x 2) + 3βx 3 + u .This last equation is what we would estimate by regressing y on x 1, 3x 1 + x 2, and x 3. The coefficient and standard error on x 1 are what we want.4.11 (i) Holding profmarg fixed, n rdintensΔ = .321 Δlog(sales ) = (.321/100)[100log()sales ⋅Δ] ≈ .00321(%Δsales ). Therefore, if %Δsales = 10, n rdintens Δ ≈ .032, or only about 3/100 of a percentage point. For such a large percentage increase in sales,this seems like a practically small effect.33(ii) H 0:1β = 0 versus H 1:1β > 0, where 1β is the population slope on log(sales ). The t statistic is .321/.216 ≈ 1.486. The 5% critical value for a one-tailed test, with df = 32 – 3 = 29, is obtained from Table G.2 as 1.699; so we cannot reject H 0 at the 5% level. But the 10% critical value is 1.311; since the t statistic is above this value, we reject H 0 in favor of H 1 at the 10% level.(iii) Not really. Its t statistic is only 1.087, which is well below even the 10% critical value for a one-tailed test.34SOLUTIONS TO COMPUTER EXERCISESC4.1 (i) Holding other factors fixed,111log()(/100)[100log()](/100)(%),voteA expendA expendA expendA βββΔ=Δ=⋅Δ≈Δwhere we use the fact that 100log()expendA ⋅Δ ≈ %expendA Δ. So 1β/100 is the (ceteris paribus) percentage point change in voteA when expendA increases by one percent.(ii) The null hypothesis is H 0: 2β = –1β, which means a z% increase in expenditure by A and a z% increase in expenditure by B leaves voteA unchanged. We can equivalently write H 0: 1β + 2β = 0.(iii) The estimated equation (with standard errors in parentheses below estimates) isn voteA = 45.08 + 6.083 log(expendA ) – 6.615 log(expendB ) + .152 prtystrA (3.93) (0.382) (0.379) (.062)n = 173, R 2 = .793.The coefficient on log(expendA ) is very significant (t statistic ≈ 15.92), as is the coefficient on log(expendB ) (t statistic ≈ –17.45). The estimates imply that a 10% ceteris paribus increase in spending by candidate A increases the predicted share of the vote going to A by about .61percentage points. [Recall that, holding other factors fixed, n voteAΔ≈(6.083/100)%ΔexpendA ).] Similarly, a 10% ceteris paribus increase in spending by B reduces n voteAby about .66 percentage points. These effects certainly cannot be ignored.While the coefficients on log(expendA ) and log(expendB ) are of similar magnitudes (andopposite in sign, as we expect), we do not have the standard error of 1ˆβ + 2ˆβ, which is what we would need to test the hypothesis from part (ii).(iv) Write1θ = 1β +2β, or 1β = 1θ– 2β. Plugging this into the original equation, and rearranging, givesn voteA = 0β + 1θlog(expendA ) + 2β[log(expendB ) – log(expendA )] +3βprtystrA + u ,When we estimate this equation we obtain 1θ≈ –.532 and se( 1θ)≈ .533. The t statistic for the hypothesis in part (ii) is –.532/.533 ≈ –1. Therefore, we fail to reject H 0: 2β = –1β.35C4.2 (i) In the modellog(salary ) = 0β+1βLSAT +2βGPA + 3βlog(libvol ) +4βlog(cost)+5βrank + u ,the hypothesis that rank has no effect on log(salary ) is H 0:5β = 0. The estimated equation (now with standard errors) isn log()salary = 8.34 + .0047 LSAT + .248 GPA + .095 log(libvol )(0.53) (.0040) (.090) (.033)+ .038 log(cost ) – .0033 rank (.032) (.0003)n = 136, R 2 = .842.The t statistic on rank is –11, which is very significant. If rank decreases by 10 (which is a move up for a law school), median starting salary is predicted to increase by about 3.3%.(ii) LSAT is not statistically significant (t statistic ≈ 1.18) but GPA is very significance (t statistic ≈ 2.76). The test for joint significance is moot given that GPA is so significant, but for completeness the F statistic is about 9.95 (with 2 and 130 df ) and p -value ≈ .0001.(iii) When we add clsize and faculty to the regression we lose five observations. The test of their joint significant (with 2 and 131 – 8 = 123 df ) gives F ≈ .95 and p -value ≈ .39. So these two variables are not jointly significant unless we use a very large significance level.(iv) If we want to just determine the effect of numerical ranking on starting law school salaries, we should control for other factors that affect salaries and rankings. The idea is that there is some randomness in rankings, or the rankings might depend partly on frivolous factors that do not affect quality of the students. LSAT scores and GPA are perhaps good controls for student quality. However, if there are differences in gender and racial composition acrossschools, and systematic gender and race differences in salaries, we could also control for these. However, it is unclear why these would be correlated with rank . Faculty quality, as perhaps measured by publication records, could be included. Such things do enter rankings of law schools.C4.3 (i) The estimated model isn log()price = 11.67 + .000379 sqrft + .0289 bdrms (0.10) (.000043) (.0296)n = 88, R 2 = .588.36Therefore, 1ˆθ= 150(.000379) + .0289 = .0858, which means that an additional 150 square foot bedroom increases the predicted price by about 8.6%.(ii)2β= 1θ – 1501β, and solog(price ) = 0β+ 1βsqrft + (1θ – 1501β)bdrms + u=0β+ 1β(sqrft – 150 bdrms ) + 1θbdrms + u .(iii) From part (ii), we run the regressionlog(price ) on (sqrft – 150 bdrms ), bdrms ,and obtain the standard error on bdrms . We already know that 1ˆθ= .0858; now we also getse(1ˆθ) = .0268. The 95% confidence interval reported by my software package is .0326 to .1390(or about 3.3% to 13.9%).C4.4 The R -squared from the regression bwght on cigs , parity , and faminc , using all 1,388observations, is about .0348. This means that, if we mistakenly use this in place of .0364, which is the R -squared using the same 1,191 observations available in the unrestricted regression, we would obtain F = [(.0387 − .0348)/(1 − .0387)](1,185/2) ≈ 2.40, which yields p -value ≈ .091 in an F distribution with 2 and 1,1185 df . This is significant at the 10% level, but it is incorrect. The correct F statistic was computed as 1.42 in Example 4.9, with p -value ≈ .242.C4.5 (i) If we drop rbisyr the estimated equation becomesn log()salary = 11.02 + .0677 years + .0158 gamesyr (0.27) (.0121) (.0016) + .0014 bavg + .0359 hrunsyr (.0011) (.0072)n = 353, R 2= .625.Now hrunsyr is very statistically significant (t statistic ≈ 4.99), and its coefficient has increased by about two and one-half times.(ii) The equation with runsyr , fldperc , and sbasesyr added is37n log()salary = 10.41 + .0700 years + .0079 gamesyr(2.00) (.0120) (.0027)+ .00053 bavg + .0232 hrunsyr(.00110) (.0086)+ .0174 runsyr + .0010 fldperc – .0064 sbasesyr (.0051) (.0020) (.0052) n = 353, R 2 = .639.Of the three additional independent variables, only runsyr is statistically significant (t statistic = .0174/.0051 ≈ 3.41). The estimate implies that one more run per year, other factors fixed,increases predicted salary by about 1.74%, a substantial increase. The stolen bases variable even has the “wrong” sign with a t statistic of about –1.23, while fldperc has a t statistic of only .5. Most major league baseball players are pretty good fielders; in fact, the smallest fldperc is 800 (which means .800). With relatively little variation in fldperc , it is perhaps not surprising that its effect is hard to estimate.(iii) From their t statistics, bavg , fldperc , and sbasesyr are individually insignificant. The F statistic for their joint significance (with 3 and 345 df ) is about .69 with p -value ≈ .56. Therefore, these variables are jointly very insignificant.C4.6 (i) In the modellog(wage ) = 0β + 1βeduc + 2βexper + 3βtenure + uthe null hypothesis of interest is H 0: 2β = 3β.(ii) Let2θ = 2β – 3β. Then we can estimate the equationlog(wage ) = 0β + 1βeduc + 2θexper + 3β(exper + tenure ) + uto obtain the 95% CI for 2θ. This turns out to be about .0020 ± 1.96(.0047), or about -.0072 to .0112. Because zero is in this CI, 2θ is not statistically different from zero at the 5% level, and we fail to reject H 0: 2β = 3β at the 5% level.C4.7 (i) The minimum value is 0, the maximum is 99, and the average is about 56.16. (ii) When phsrank is added to (4.26), we get the following:n log() wage = 1.459 − .0093 jc + .0755 totcoll + .0049 exper + .00030 phsrank (0.024) (.0070) (.0026) (.0002) (.00024)38 n = 6,763, R 2 = .223So phsrank has a t statistic equal to only 1.25; it is not statistically significant. If we increase phsrank by 10, log(wage ) is predicted to increase by (.0003)10 = .003. This implies a .3% increase in wage , which seems a modest increase given a 10 percentage point increase in phsrank . (However, the sample standard deviation of phsrank is about 24.)(iii) Adding phsrank makes the t statistic on jc even smaller in absolute value, about 1.33, but the coefficient magnitude is similar to (4.26). Therefore, the base point remains unchanged: the return to a junior college is estimated to be somewhat smaller, but the difference is not significant and standard significant levels.(iv) The variable id is just a worker identification number, which should be randomly assigned (at least roughly). Therefore, id should not be correlated with any variable in the regression equation. It should be insignificant when added to (4.17) or (4.26). In fact, its t statistic is about .54.C4.8 (i) There are 2,017 single people in the sample of 9,275.(ii) The estimated equation isn nettfa = −43.04 + .799 inc + .843 age ( 4.08) (.060) (.092)n = 2,017, R 2 = .119.The coefficient on inc indicates that one more dollar in income (holding age fixed) is reflected in about 80 more cents in predicted nettfa ; no surprise there. The coefficient on age means that, holding income fixed, if a person gets another year older, his/her nettfa is predicted to increase by about $843. (Remember, nettfa is in thousands of dollars.) Again, this is not surprising.(iii) The intercept is not very interesting as it gives the predicted nettfa for inc = 0 and age = 0. Clearly, there is no one with even close to these values in the relevant population.(iv) The t statistic is (.843 − 1)/.092 ≈ −1.71. Against the one-sided alternative H 1: β2 < 1, the p-value is about .044. Therefore, we can reject H 0: β2 = 1 at the 5% significance level (against the one-sided alternative).(v) The slope coefficient on inc in the simple regression is about .821, which is not very different from the .799 obtained in part (ii). As it turns out, the correlation between inc and age in the sample of single people is only about .039, which helps explain why the simple and multiple regression estimates are not very different; refer back to page 84 of the text.39C4.9 (i) The results from the OLS regression, with standard errors in parentheses, aren log() psoda =−1.46 + .073 prpblck + .137 log(income ) + .380 prppov (0.29) (.031) (.027) (.133)n = 401, R 2 = .087The p -value for testing H 0: 10β= against the two-sided alternative is about .018, so that wereject H 0 at the 5% level but not at the 1% level.(ii) The correlation is about −.84, indicating a strong degree of multicollinearity. Yet eachcoefficient is very statistically significant: the t statistic for log()ˆincome β is about 5.1 and that forˆprppovβ is about 2.86 (two-sided p -value = .004).(iii) The OLS regression results when log(hseval ) is added aren log() psoda =−.84 + .098 prpblck − .053 log(income ) (.29) (.029) (.038)+ .052 prppov + .121 log(hseval )(.134) (.018)n = 401, R 2 = .184The coefficient on log(hseval ) is an elasticity: a one percent increase in housing value, holding the other variables fixed, increases the predicted price by about .12 percent. The two-sided p -value is zero to three decimal places.(iv) Adding log(hseval ) makes log(income ) and prppov individually insignificant (at even the 15% significance level against a two-sided alternative for log(income ), and prppov is does not have a t statistic even close to one in absolute value). Nevertheless, they are jointly significant at the 5% level because the outcome of the F 2,396 statistic is about 3.52 with p -value = .030. All of the control variables – log(income ), prppov , and log(hseval ) – are highly correlated, so it is not surprising that some are individually insignificant.(v) Because the regression in (iii) contains the most controls, log(hseval ) is individually significant, and log(income ) and prppov are jointly significant, (iii) seems the most reliable. It holds fixed three measure of income and affluence. Therefore, a reasonable estimate is that if the proportion of blacks increases by .10, psoda is estimated to increase by 1%, other factors held fixed.40C4.10 (i) Using the 1,848 observations, the simple regression estimate of bs β is about .795−. The 95% confidence interval runs from 1.088 to .502−−, which includes −1. Therefore, at the 5% level, we cannot reject that 0H :1bs β=− against the two-sided alternative.(ii) When lenrol and lstaff are added to the regression, the coefficient on bs becomes about −.605; it is now statistically different from one, as the 95% CI is from about −.818 to −.392. The situation is very similar to that in Table 4.1, where the simple regression estimate is −.825 and the multiple regression estimate (with the logs of enrollment and staff included) is −.605. (It is a coincidence that the two multiple regression estimates are the same, as the data set in Table 4.1 is for an earlier year at the high school level.)(iii) The standard error of the simple regression estimate is about .150, and that for the multiple regression estimate is about .109. When we add extra explanatory variables, two factors work in opposite directions on the standard errors. Multicollinearity – in this case, correlation between bs and the two variables lenrol and lstaff works to increase the multiple regressionstandard error. Working to reduce the standard error of ˆbsβis the smaller error variance when lenrol and lstaff are included in the regression; in effect, they are taken out of the simpleregression error term. In this particular example, the multicollinearity is modest compared with the reduction in the error variance. In fact, the standard error of the regression goes from .231 for simple regression to .168 in the multiple regression. (Another way to summarize the drop in the error variance is to note that the R -squared goes from a very small .0151 for the simpleregression to .4882 for multiple regression.) Of course, ahead of time we cannot know which effect will dominate, but we can certainly compare the standard errors after running both regressions.(iv) The variable lstaff is the log of the number of staff per 1,000 students. As lstaff increases, there are more teachers per student. We can associate this with smaller class sizes, which are generally desirable from a teacher’s perspective. It appears that, all else equal, teachers are willing to take less in salary to have smaller class sizes. The elasticity of salary with respect to staff is about −.714, which seems quite large: a ten percent increase in staff size (holding enrollment fixed) is associated with a 7.14 percent lower salary.(v) When lunch is added to the regression, its coefficient is about −.00076, with t = −4.69. Therefore, other factors fixed (bs , lenrol , and lstaff ), a hire poverty rate is associated with lower teacher salaries. In this data set, the average value of lunch is about 36.3 with standard deviation of 25.4. Therefore, a one standard deviation increase in lunch is associated with a change in lsalary of about −.00076(25.4) ≈ −.019, or almost two percent lower. Certainly there is no evidence that teachers are compensated for teaching disadvantaged children.(vi) Yes, the pattern obtained using ELEM94_95.RAW is very similar to that in Table 4.1, and the magnitudes are reasonably close, too. The largest estimate (in absolute value) is the simple regression estimate, and the absolute value declines as more explanatory variables are added. The final regressions in the two cases are not the same, because we do not control for lunch in Table 4.1, and graduation and dropout rates are not relevant for elementary school children.。
Ch. 4 - Consumer and Producer Surplus
![Ch. 4 - Consumer and Producer Surplus](https://img.taocdn.com/s3/m/31d77706e87101f69e319591.png)
equal to his cost. b. No trade takes place because So-Hee’s cost is $1,500, which is higher than the
price of $1,200 she is offered. So no producer surplus is created. c. Sanjay’s cost is zero. The price he is paid for his time is $80,000, so his producer
S61-S70_Krugman2e_PS_Ch04.qxp 9/16/08 9:19 PM Page S-61
chapter:
4
Consumer and Producer Surplus
1. Determine the amount of consumer surplus generated in each of the following
Solution 1. a. Leon’s consumer surplus is $5. This is the difference between how much he is
willing to pay ($10) and how much he does pay ($5). b. Since Alberto’s willingness to pay is $10 and the price of the CD is $10, he gets
管理顾问
![管理顾问](https://img.taocdn.com/s3/m/26906e0279563c1ec5da7131.png)
Reduce frequency of location change Reduce level of luxury
POSITIONIERUNG DER LOGIKBÄUME
Der Logikbaum kann … … das Problem strukturieren helfen
… Arbeitsschwerpunkte und den Projektfortschritt transparent machen
Source: McKinsey EFIC
6
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RANKINGS FOR MARKETING PURPOSES: ONE EXAMPLE
Source: The Economist
7
000624FT_262414_777_v3_i
RANKING ONE EXAMPLE: BOOKRUNNERS OF ALL INTERNATIONAL/ EUROBONDS
14
000624FT_262414_777_v3_i
PRINZIP DER STRUKTURIERTEN PROBLEMLÖSUNG
Vorteile der Strukturierung
• Leichtere Lösungsfindung
– Teilprobleme leichter überschaubar – Vollständigkeit gesichert – Schwerpunktthemen schneller erkennbar
How? – Type of costs How? – Quantity vs. price Reduce no. of days away Reduce hotel and food expenses Reduce costs per day away
高考英语写作题型全面突破:专题28 概要写作技法点拨
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概要写作技法点拨养成良好的答题习惯,是决定成败的决定性因素之一。
做题前,要认真阅读题目要求、题干和选项,并对答案内容作出合理预测;答题时,切忌跟着感觉走,最好按照题目序号来做,不会的或存在疑问的,要做好标记,要善于发现,找到题目的题眼所在,规范答题,书写工整;答题完毕时,要认真检查,查漏补缺,纠正错误。
目录1.考情分析2.写作步骤3.不同文体的写作技巧4.tips to paraphrase5.真题体验6.优质模拟题1.考情分析概要写作属于限制性写作,所提供短文词数在350左右,要求考生概括和准确获取文章关键词,写出一篇60词左右的内容概要。
所选材料体裁没有限制,以议论文、说明文为主。
评分标准:(1)对原文要点的理解和呈现情况;(2)应用语法结构和词汇的准确性;(3)上下文的连贯性;(4)对各要点表达的独立性情况。
(5) 字数超过6个以内-1,超过6个以上-2(6)不要连续5个字以上使用原文概要写作的特点:简洁,客观,全面,一定要使用第三人称。
2.写作步骤 Step 1. 判断文体,厘清文体结构 Step 2. 确定主题、关键词 Step 3. 组织支撑句,将原文关键词或句型进行同义替换和句型转换,恰当衔接,连句成文注意:1.成文应仅涵盖材料的关键事实,省掉不必要的细节,不能添加个人观点2.材料中的例子可以去繁就简,选择典型例子保留3.不同文体写作技巧4.tips to paraphrase1.同义词替换 Get - obtain/ gain/ acquire decide -- determine finish ---complete/accomplishImprove --promote/ enhance buy ---purchase remember ---keep in mind2.词性变化Important --be of importance benefit ---beneficial/ be of benefit说明文: 1.确定中心句抓住关键词、说明顺序(时间,空间,方位)、说明方法(列数字,举例子,做对比....)2.写作类型及模板:事物说明型--说明对象+性质功能+好处 问题解决型--问题+解决方法 现象解释型-- 现象+原因+结果 议论文: 记叙文: 1.确定6要素:what 、who 、when 、where 、why 、 how 2.整合信息,串联要素,确定时态、人称3.语态变化Take measures to do-- measures should be taken to do4.非谓语与从句的转换He was late for school because he got up late.---- Getting up late, he was late for school.5.真题体验2023.6上海真题Teenagers should be pulled out of the sofa,sayscientistsFor many years, scientists thought that the humanbrain was fully mature before the teen years. They thought that a person's brain growth was complete and the structure was more or less fixed by the age of 3.However, more recent research shows that although the brain reaches its maximum size between the age of 12 and 14, brain development is not yet complete. The brain's functionally different sections communicate with each other through synapsesconnections between nerve cells. Scientists have found that synapses grow or die away, depending on how much they are used to process information.The good news is that teenagers do have the potential, through choice and behaviour, to shape their brain development. The brain automatically gets rid of the synapses that it doesn't need in order to make the remaining ones more efficient. During the time the brain is removing synapses, the cells and connections that are used survived, while the ones that are not used die away.For example,if a teenager is doing music,sports or academic studies,those are the cells and connections that will become part of the brain's operating system.But unfortunately, if he or she is lying on the sofa, watching TV and playing computer games,those are the brain cells and connections that will remain into adulthood. Therefore, what you do with your teenage years could have an effect on the rest of your life.What is important is that leaving how synapses grow or die away can help teenagers be better equipped to make more intelligent choices,thus motivating them to take a moment before acting to consider the consequences of their action.If you don't want to become an adult who is buried in the sofa all daylong, pull yourself out of itwhen you are still a teenager.参考答案:This research finds teenagers' brain is still developing. Synapses connect nerve cells and enable different brain parts to make communication.They grow when used and disappear if unused. What teenagers choose to do determines what cells and connections survive into adulthood,thus affecting their adult life. Thisknowledge of synapses can help teenagers make wiser choices.解析:五分满分,在及格分3分的基础上,要提及以下两点能得满分1.完整概括青少年大脑生理机能,要表达出用synapses进废退的特征, 表达出They grow when used and disappear if unused。
独树一帜还是随波逐流
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费者会将自身的需求放在首位ꎬ 更在意产品的独特性和新颖性ꎬ 产品效用会随购买人数增加而降
131
珞珈管理评论
2024 年卷第 2 辑 ( 总第 53 辑)
低ꎻ 跟随型消费者则把其他消费者的期望或行为作为自己行为参照的准则ꎬ 进而在自己的产品评
管理评论
Luojia Management Review
2024 年卷第 2 辑 ( 总第 53 辑)
No 2ꎬ 2024 ( Sum 53)
独树一帜还是随波逐流?
消费者类型和奢侈品环保信息
交互效应对购买意愿的影响
∗
•冯文婷1 李 洁2 沈先运2 刘陈陵2
(1 中国地质大学 ( 武汉) 珠宝学院 武汉 430074ꎻ
侈品品牌热衷于投身可持续性实践活动ꎬ 开发可持续奢侈品的生产线ꎬ 可持续奢侈品日益成为一种
新的时尚潮流 ( Li & Leonasꎬ 2019) ꎮ
可持续奢侈品是指符合环保诉求ꎬ 具有节能、 无害等可持续属性或相关联的奢侈品ꎮ 现有研究
表明ꎬ 消费者对于可持续奢侈品存在两种矛盾态度: 一方面ꎬ “ 可持续” 与自我超越、 道德和利他主
目ꎻ 阿玛尼则承诺 2020 年起避免在生产过程中使用危险化学品ꎻ 古驰也在 2017 年宣布不再使用一切
动物皮草ꎮ 此外ꎬ 在全球可持续时尚峰会上ꎬ 宝格丽首席执行官提出: “ 作为一个奢侈品品牌ꎬ 宝格
丽以其可持续性发展的品牌理念为傲ꎬ 在每一个经营环节中坚持合乎道德的生产准则” ꎮ 这表明ꎬ 奢
实验二验证消费者心理需求 ( 分化、 同化) 和奢侈品环保信息 ( 可持续、 非可持续) 的匹配一致性
银行管理(第六版)课件 Ch04
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4-8
Loan Accounts
Gross Loans – Sum of All Loans Allowance for Possible Loan Losses
Contra Asset Account For Potential Future Loan Losses
Net Loans Nonperforming Loans
© 2005 The McGraw-Hill Companies, Inc., All Rights Reserved.
4-6
Cash Assets
Account is Called Cash and Deposits Due from Bank Includes:
Vault Cash Deposits with Other Banks Cash Items in Process of Collection Reserve Account with the Federal Reserve
4-3
Bank Financial Statements
Report of Condition – Balance Sheet Report of Income – Income Statement Sources and Uses of Funds Statement Statement of Stockholders’ Equity
Cash and Deposits Due from Banks Investment Securities Fed Funds Sold and Repos. Total Loans and Leases (Net)
Commercial and Industrial Consumer Real Estate To Depository Institutions To Foreign Governments Agriculture Other Loans Leases Assets Held in Trading Accounts Bank Premises and FA (Net) Other Assets
高中人教版英语选修8第4课测试
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Test on Unit 4I. V ocabulary (20%)A. Complete the following sentences with the right words or word forms.1.As the pollution caused by the nuclear leakage (核泄漏) in Japan e____________,neighboring nations are taking concrete actions to prevent the potential damages.2.Recipes (食品的做法) should meet personal needs. For example, if you are concerned aboutthe extra calories, you can use a low-fat a__________ to butter while making the course.3.On hearing the story of the poor girl Lin Guangzhu, people started to donate moneyv__________ for her operation, which demonstrated the fact that kindness prevails in our society.4.Huawei manufactures and d__________ tele-communication related products worldwide.You can find its products in more than 90 countries around the world.5.Actress Barbie Hsu and millionaire entrepreneur exchanged vows in front of family andfriends on the beach in Sanya, Hainan on the afternoon of March 22nd and the details of the ceremony were r__________ by Zhang Chaoyang through his microblog.6.M__________ by the devotion to charity course, Jacky Chan announced that he woulddonate all his money to charity instead of leaving it to his son Jaycee Chan.7.KFC has i_________ Malaysian flavor into the fried chicken and added the new Nyonya (娘惹) chicken wings to its menu.8.Irritated by the factory’s failing to pay their wages for months, the d__________ workersdecided to go on a strike.9.Don’t get distracted by _____________ (relevance) facts. Only by adhering to the focus ofour research can we achieve success.10.You really shouldn’t doubt about his __________ (competent). Just have a look at the salesrecord, and you will know he has exceptional talent.11.As a famous book critic, she is hugely ____________ (influence). Whatever has beenrecommended by her will soon come to the list of “best sellers”.12.The general demands strict _______________ (disobedient) from his troops. Anyone whosays no or even shows a sign of hesitation will be severely punished.B. Choose the right phrases below to fill in the blanks.13.It seems to take years for the paint to _______________. Painted last week, it is still wetnow.14.Having been trapped in the traffic jam for almost an hour, Jane got to the theatre late and_______________ nearly half of the play.15.With promotion, she _______________ greater responsibilities, which means even less timecan be spent with the family for her.16.Identical twins as they are, Zoe and Tina differ greatly in preferences. Zoe tends to be quiet,introverted and prefers classical music. _______________, Tina finds great interest in associating with people and cannot even live without rock-and-roll.17.Philips has been engaged in an endless round of restructuring ________________ make itselfmore competitive.18.The importance of exercise to good health is only one example of aspects of life people mostoften _______________. They, however, have no idea why it is important and how important it is.19.Economic overgrowth will _______________ a series of problems, among which inflation isa significant one.20.One common concern that is frequently heard with regard to orphans is the lack of propercare and love, and, as you can imagine, most of the orphans _____________ have a complete family as their peers.II. Multiple Choice (10%)21.The plan has to be _______ to meet the real situation.A. adjustedB. adaptedC. producedD. refounded22.I ______ my university professor in the supermarket near my house, which was out of myexpectation.A. came outB. came acrossC. came aboutD. came along23.The man I ______ yesterday in the street is my manager.A. paid a visitB. had a talkC. metD. dropped24.I was about to go to bed _____ one of my old classmates made a call to me.A. whenB. asC. whileD. that25.Is that the reason _____ you are in favor of the proposal?A. whichB. whatC. whyD. for that26.You may call on me from one to five o’clock, during _____ I am always at home.A. the timeB. what timeC. that timeD. which time27.China is the birthplace of kites, _____ kiteflying(放风筝)spread to Japan, Korea, Thailandand India.A. from thereB. whereC. from whereD. there28.He has to work on Sundays, _____ he does not like.A. and whichB. whichC. and whenD. when29.The general at last got a chance to visit the village _____ he used to fight, _____ he had beendreaming of for years.A. that, whichB. where, thatC. in which, whatD. where, which30._____, the compass was first made in China.A. It is know to allB. It is known thatC. We all knowD. As is known to allIII. Passage Completion (10%)Viennese-born composer Frederick Loewe, 31 we remember from his classical music als including “My Fair Lady”an d “Camelot”, was not always famous. He studied piano with the great masters of Europe and achieved huge success as a 32 (music) and composer in his early years. But 33 he immigrated to the United States, he failed as a pianist. For a while he tried other types of work including gold mining and boxing. 34 he never gave uphis dream and continued to play the piano and write music.35 those difficult years, he could not always afford 36 (make) payments on his piano. One day, bent over the keyboard, he could hear nothing but the music that he played with such rare inspiration. When he finished and looked up, he was astonished to find that he had 37 audience of three moving men who 38 (seat) on the floor.They said nothing and made no movement toward the piano. Instead, they dug into their pockets, pooled together enough money for the payment, placed it on the piano and walked out, empty 39 (hand). Moved by the beauty of his music, these men recognized excellence and responded to 40 .IV. Cloze Test(15%)Where did all the tigers go? That’s what Indian Prime Minister Manmohan Singh wants to know. India’s Sariska Project Tiger Reserve, once home to 26 tigers, is now home to none. Singh has ordered a police investigation into the ___41___,and created a new taskforce to save the ___42___ animals.Tigers are an endangered species(物种). Half of the world’s tiger ___43___ live in India. For years, tigers have been disappearing from India’s national parks, but Sariska may be the last straw. And the government has to ___44___On Thursday, Singh held the first meeting of ___45___ officials, wildlife experts, and related leaders, aiming to ___46___ the nation’s remaining tigers,and to 47 a plan to keep them safe.It is not hard to guess why the tigers are disappearing. Poachers (偷猎者) can 48 the big cats for $ 50,000 each. Tigher skin and bones are popular in Chinese 49 . A single tiger tooth can fetch $ 120. Recently, a group of poachers admitted killing ten tigers in Sariska and were 50 .“Indian tiger poaching is probably the 51 conservation problem in modern times.” said Belinda Wright, the bead of the Wildlife Protection Society of India.However, poaching isn’t the only 52 . Many poachers use advanced technologies, like night glassed and long – range binoculars. Forest security officers are paid so 53 that few of them 54 to track down the preachers. Even if a security guard were to find a poacher, many carry only a stick to make him obey the law.Tiger fans hope that Singh’s plans mean end for the poachers and 55 for the endangered species.41.A.project B.disappearance C.reserve D.home42.A.dangerous B.huge C.rare D.fierce43.A.population B.percentage C.generation D.group44.A.care B.plan C.react D.wake45.A.business B.trade C.army D.forest46.A.ensure B.count C.keep D.feed47.A.come up with B.put up with C.catch up with D.go on with48.A.raise B.hunt C.sell D.shoot49.A.food B.tradition C.culture D.medicine50.A.found B.arrested C.prohibited D.controlled51.A.oldest B.hottest C.biggest D.latest52.A.problem B.worry C.crime D.factor53.A.commonly B.poorly C.slightly D.highly54.A.determine B.remember C.hesitate D.bother55.A.success B.lamp C.hope D.achievementV. Reading Comprehension (20%)AAs a professor at a large American university, there is a phrase that I hear often from students: “I’m only a 1050.”The unlucky students are speaking of the score on the Scholastic Aptitude Test (SAT), which is used to determine whether they will be admitted to the college or university of their choice, or even if they have a chance to get a higher education at all. The SAT score, whether it is 800, 1100 or 1550, has become the focus at this time of their life.It is obvious that if students value highly their test scores, then a great amount of their self-respect is put in the number. Students who perform poorly on the exam are left feeling that it is all over. The low test score, they think, will make it impossible for them to get into a good college. And without a degree from a prestigious university, they fear that many of life’s doors will remain forever closed.According to a study done in the 1990s, the SAT is only a reliable indicator of a student’s future performance in most cases. Interestingly, it becomes much more accurate when it is set together with other indicators – like a student’s high school grades. Even if standardized tests like SAT could show a student’s academic proficiency, they will never be able to test things like confidence, efforts and willpower, and are unable to give us the full picture of a student’s potentialities. This is not to suggest that we should stop using SAT scores in our college admission process. The SAT is an excellent test in many ways, and the score is still a useful means of testing students. However, it should be only one of many methods used.56.The purpose of the SAT is to test student s’ __________.A. strong willB. academic abilityC. full potentialitiesD. confidence in school work57.Students’ self-respect is influenced by their __________.A. scores in the SATB. achievements in mathematicsC. job opportunitiesD. money spent on education58.“A prestigious university” is most probably __________.A. a famous universityB. a technical universityC. a traditional universityD. an expensive university59.This passage is mainly about __________.A. how to prepare for the SA TB. stress caused by the SATC. American higher educationD. the SAT and its effects60.What is the writer’s attitude towards the SA T?A. SubjectiveB. ObjectiveC. CriticalD. ApprovingBNuclear radiation has a certain mystery, partly because it cannot be detected by human senses. It can’t be seen or heard, or touched or tasted, even though it may be all around us. Thereare other things like that. For example, radio waves are all around us but we cannot detect them or sense them without a radio receiver. Similarly, we can’t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.At very high levels, radiation can kill an animal or human being outright by killing masses of cells in important organs. Even the lowest level can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and when they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.There is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated (放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result.A child can be born weak or easy to get serious illnesses as a result of radiation absorbed by its grandparents.61.According to the passage, the danger of nuclear power lies in __________.A. the nuclear mysteryB. radiation detectionC. the radiation levelD. nuclear radiation62.Radiation can lead to serious trouble __________.A. when it kills few cellsB. if it damages few cellsC. though the damaged cells can repair themselvesD. when the damaged cells reproduce themselves63.Radiation can hurt us so much that it can _________.A. kill large numbers of cells in main organsB. replace cells which may grow into cancer years laterC. affect the healthy growth of our younger generationD. both A and C64.Which of the following can be best inferred from the passage?A. The importance of protection from radiation cannot be overemphasized.B. The mystery about radiation has been solved.C. Cancer is only caused by radiation.D. Radiation can hurt those who do know about its danger.65.What would be the best title of the text?A. Radiation can hurt us.B. Radiation is the source of cancer.C. Radiation is a subject scientists work on.D. Radiation is a mystery.CSo long as teachers fail to distinguish between teaching and learning, they will continue to undertake to do for children what only children can do for themselves. Teaching children to read is not passing Reading on to them. It is certainly not endless hours spent in activities about reading.Douglas insists that “Reading cannot be taught directly and schools should stop trying to the impossible.”Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also a public activity: it can be seen and observed.Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public scrutiny.If roles of teacher and learner are not interchangeable, what then can be done through teaching that will aid the child in the quest for knowledge? Smith has one principal rule for all teaching instructions “Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children.”When the roles of teachers and learners are seen for what they are, and when both teacher and learner fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated, leaning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of leaning to read by reading.66.The teaching of reading will be successful if _________.A. teachers can improve conditions at school for the studentsB. teachers can enable students to develop their own way of readingC. teachers can devise the most efficient system for readingD. too much time is spent in teaching activities observable67.The underlined word “scrutiny” (Line 4 Para. 3) most probably means ________.A. inquiryB. observationC. controlD. suspicion68.The main idea of the passage is that __________.A. teachers should do as little as possible in helping students learn to read.B. teachers should encourage students to read as widely as possibleC. reading ability is something acquired rather than taught.D. reading is more complicated than generally believed69.Which should the teacher do when teaching according to the passage?A. Teach students what to read and how to read.B. Tell the students how to understand difficult words and sentences.C. Encourage students to read and give them freedom to enjoy reading.D. Teach students to read to pass tests.70.What can we know from the passage?A. Now students face a lot of pressure from teachers when reading.B. Teachers are not under great pressure to teach reading.C. Teachers are to blame for their misguiding of the students in teaching reading.D. Students should read more books and study harder.DWhether it’s a carol (圣诞颂歌) service or an evening of karaoke down the pub many people will enjoy a good old singsong this Christmas. Singing aloud will not just lift the spirits –it’s good for your physical health as well. Filling the lungs with a ir, increasing the heart rate and getting blood pumping round the body faster can all help our physical health.For the past few years Heart Research UK has been running a Christmas campaign aimed at getting people singing, simply for the benefit it can bring. The organizer of the campaign says singing is a safe, simple and social activity that everyone can enjoy. “Singing is linked to long life, stress reduction, and general health protection. It also brings a great amount of happiness. It is impossible to sing well with a long face because it affects your pitch (音高).”Professor Graham Welch, who leads the International Music Education Research Centre at the University of London, has spent more than 30 years studying the effects of singing. He says that sin ging is a form of exercise. It means we’re also having a strong aerobe activity (有氧运动) when we’re singing, which results in increasing the feeling of pleasure while decreasing that of stress.“And communal singing – like in a singing group, a church service or even a singsong in the pub, helps improve our sense of self – respect. It increases our sense of satisfaction with ourselves, a greater sense of feeling included.”Helen Astrid, a singing teacher, also sees the great effects that singing brings. “It lifts us up on a spiritual level, it helps our self –respect, and it’s great for all ages from small kids to grannies you can have a good sing and let your hair down.”But she warns people not to have too many beers or glasses of wine, though a glass may help them gather courage before taking to the stage during the holidays.71.Heart Research UK holds a campaign to .A.encourage people to sing for God at ChristmasB.study the effects of singing on peopleC.get people to sing and improve their healthD.bring happiness to people celebrating the holiday72.What are the benefits of singing according to Graham Welch?a.Singers living longer. b.Singers general health protection.c.Singers feeling happier. d.Singers stress reduced.e.Singers self-respect improved.A.a,b,c B.b,c,d C.c,d,e D.e,a,b,73.The underlined part “let your hair down” probably means.A.feel at ease B.protect yourselfC.dress casually D.cover your nervousness74.What can we infer from the passage?A.Singing at Christmas is good for health.B.In a low mood one is not able to sing well.C.Experts have disagreements on singing.D.Singing is the same as other aerobic activities.75.Which is the best title of the passage?A.Karaoke-Best Place for Singing!B.Christmas-Best Time for Singing!C.Singing-Healthy but not Easy!D.For heath-Let’s Sing!VI. Writing(25%)阅读下面的短文,然后按照要求写一篇150词左右的英语短文。
微观经济学Ch04
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CHAPTER 4 INDIVIDUAL AND MARKET DEMAND1. Explain the difference between each of the following terms:a. a price consumption curve and a demand curve;A price consumption curve identifies the utility maximizing combinations of two goods as the price of one of the goods changes. When the price of one of the goods declines, thebudget line will pivot outwards, and a new utility maximizing bundle will be chosen. Theprice consumption curve connects all such bundles. A demand curve is a graphical relationship between the price of a good and the (utility maximizing) quantity demanded ofa good, all else the same. Price is plotted on the vertical axis and quantity demanded on thehorizontal axis.b. an individual demand curve and a market demand curve;An individual demand curve identifies the (utility maximizing) quantity demanded by oneperson at any given price of the good. A market demand curve is the sum of the individual demand curves for any given product. At any given price, the market demand curveidentifies the quantity demanded by all individuals, all else the same.c. an Engel curve and a demand curve;A demand curve identifies the quantity demanded of a good for any given price, holding income and all else the same. An Engel curve identifies the quantity demanded of a good forany given income, holding prices and all else the same.d. an income effect and a substitution effect;The substitution effect measures the effect of a change in the price of a good on theconsumption of the good, utility held constant. This change in price changes the slope of thebudget line and causes the consumer to rotate along the current indifference curve. The income effect measures the effect of a change in purchasing power (caused by a change inthe price of a good) on the consumption of the good, relative prices held constant. Forexample, an increase in the price of good 1 (on the horizontal axis) will rotate the budget linedown along the indifference curve as the slope of the budget line (the relative price ratio) changes. This is the substitution effect. This new budget line will then shift inwards to reflect the decline in purchasing power caused by the increase in the price of the good. Thisis the income effect.3. Explain whether the following statements are true or false.a. The marginal rate of substitution diminishes as an individual moves downward alongthe demand curve.This is true. The consumer will maximize his utility by choosing the bundle on his budgetline where the price ratio is equal to the MRS. Suppose the consumer chooses the quantity ofgoods 1 and 2 such that P 1P 2MRS . As the price of good 1 falls, the price ratio becomes a smaller number and hence the MRS becomes a smaller number. This means that as the priceof good 1 falls, the consumer is willing to give up fewer units of good 2 in exchange foranother unit of good 1.b. The level of utility increases as an individual moves downward along the demandcurve.This is true. As the price of a good falls, the budget line pivots outwards and the consumer isable to move to a higher indifference curve.c.Engel curves always slope upwards.This is false. The Engel curve identifies the relationship between the quantity demanded of agood and income, all else the same. If the good is inferior, then as income increases, quantitydemanded will decrease, and the Engel curve will slope downwards.5. Which of the following combinations of goods are complements and which are substitutes? Could they be either in different circumstances? Discuss.a. a mathematics class and an economics classIf the math class and the economics class do not conflict in scheduling, then the classes couldbe either complements or substitutes. The math class may illuminate economics, and theeconomics class can motivate mathematics. If the classes conflict, they are substitutes.b. tennis balls and a tennis racketTennis balls and a tennis racket are both needed to play a game of tennis, thus they arecomplements.c. steak and lobsterFoods can both complement and substitute for each other. Steak and lobster can compete, i.e.,be substitutes, when they are listed as separate items on a menu. However, they can alsofunction as complements because they are often served together.d. a plane trip and a train trip to the same destinationTwo modes of transportation between the same two points are substitutes for one another.e. bacon and eggsBacon and eggs are often eaten together and are, therefore, complementary goods. Byconsidering them in relation to something else, such as pancakes, bacon and eggs can functionas substitutes.7. Which of the following events would cause a movement along the demand curve for U.S.-produced clothing, and which would cause a shift in the demand curve?a. the removal of quotas on the importation of foreign clothesThe removal of quotas will shift the demand curve inward for domestically-produced clothes,because foreign-produced goods are substitutes for domestically-produced goods. Both theequilibrium price and quantity will fall as foreign clothes are traded in a free marketenvironment.b. an increase in the income of U.S. citizensWhen income rises, expenditures on normal goods such as clothing increase, causing thedemand curve to shift out. The equilibrium quantity and price will increase.c. a cut in the industry’s costs of producing domestic clothes that is passed on to the market in theform of lower clothing pricesA cut in an industry’s costs will shift the supply curve out. The equilibri um price will fall andquantity will increase. There is a movement along the demand curve.9. Suppose that the average household in a state consumes 800 gallons of gasoline per year. A 20-cent gasoline tax is introduced, coupled with a $160 annual tax rebate per household. Will the household be better or worse off under the new program?If the household does not change its consumption of gasoline, it will be unaffected by the tax-rebate program, because in this case the household pays 0.20*800=$160 in taxes and receives$160 as an annual tax rebate. The two effects would cancel each other out. To the extent thatthe household reduces its gas consumption through substitution, it must be better off. Thenew budget line (price change plus rebate) will pass through the old consumption point of 800gallons of gasoline, and any now affordable bundle that contains less gasoline must be on ahigher indifference curve. The household will not choose any bundle with more gasolinebecause these bundles are all inside the old budget line, and hence are inferior to the bundlewith 800 gallons of gas.11. Explain which of the following items in each pair is more price elastic.a.The demand for a specific brand of toothpaste and the demand for toothpaste in general.The demand for a specific brand is more elastic since the consumer can easily switch toanother brand if the price goes up.b.The demand for gasoline in the short run and the demand for gasoline in the long run.Demand in the long run is more elastic since consumers have had more time to adjust to thechange in price.1. An individual sets aside a certain amount of his income per month to spend on his two hobbies, collecting wine and collecting books. Given the information below, illustrate both the price consumption curve associated with changes in the price of wine, and the demand curve for wine.The price consumption curve connects each of the four optimal bundles given in the tableabove. As the price of wine increases, the budget line will pivot inwards and the optimalbundle will change.4. a. Orange juice and apple juice are known to be perfect substitutes. Draw the appropriate price-consumption (for a variable price of orange juice) and income-consumption curves.We know that the indifference curves for perfect substitutes will be straight lines. In this case,the consumer will always purchase the cheaper of the two goods. If the price of orange juice isless than that of apple juice, the consumer will purchase only orange juice and the priceconsumption curve will be on the “orange juice axis” of the graph (point F). If apple juice ischeaper, the consumer will purchase only apple juice and the price consumption curve will beon the “apple juice axis” (point E). If the two goods have the same price, the consumer will beindifferent between the two; the price consumption curve will coincide with the indifferencecurve (between E and F). See the figure below.Assuming that the price of orange juice is less than the price of apple juice, the consumer willmaximize her utility by consuming only orange juice. As the level of income varies, only theamount of orange juice varies. Thus, the income consumption curve will be the “orange juiceaxis” in the figure below.4.b. Left shoes and right shoes are perfect complements. Draw the appropriate price-consumption and income-consumption curves.For goods that are perfect complements, such as right shoes and left shoes, we know that theindifference curves are L-shaped. The point of utility maximization occurs when the budgetconstraints, L1 and L2 touch the kink of U1 and U2. See the following figure.In the case of perfect complements, the income consumption curve is also a line through thecorners of the L-shaped indifference curves. See the figure below.6. Two individuals, Sam and Barb, derive utility from the hours of leisure (L) they consume and fromthe amount of goods (G) they consume. In order to maximize utility they need to allocate the 24 hours in the day between leisure hours and work hours. Assume that all hours not spent working areleisure hours. The price of a good is equal to $1 and the price of leisure is equal to the hourly wage. We observe the following information about the choices that the two individuals make:Graphically illustrate Sam’s leisure demand curve and Barb’s leisure demand curve. Place price on the vertical axis and leisure on the horizontal axis. Given that they both maximize utility, how can you explain the difference in their leisure demand curves?It is important to remember that less leisure implies more hours spent working at the higher wage. Sam’s leisure demand curve is downward sloping. As the price of leisure (the wage)rises, he chooses to consume less leisure to spend more time working at a higher wage tobuy more goods. Barb’s leisure demand curve is upward sloping. As the price of leisurerises, she chooses to consume more leisure since her working hours are generating more income. This difference in demand can be explained by examining the income andsubstitution effects for the two individuals. The substitution effect measures the effect of thechange in the price of leisure, keeping utility constant (the budget line will rotate around the current indifference curve). Since the substitution effect is always negative, a rise in theprice of leisure will cause both individuals to consume less leisure. The income effectmeasures the change in purchasing power caused by the change in the price of leisure. Here, when the price of leisure (the wage) rises, there is an increase in purchasing power (the newbudget line will shift outwards). Assuming both individuals consider leisure to be a normalgood (this is not a necessary assumption for Sam), then the increase in purchasing powerwill increase demand for leisure. For Sam, the reduction in leisure demand caused by the substitution effect outweighs the increase in demand for leisure caused by the income effect.For Barb, her income effect is larger than her substitution effect.7. The director of a theatre company in a small college town is considering changing the way he prices tickets. He has hired an economic consulting firm to estimate the demand for tickets. The firm has classified people who go the theatre into two groups, and has come up with two demand functions. The demand curves for the general public (Q gp ) and students (Q s ) are given below.Q gp =500-5PQ s =200-4Pa. Graph the two demand curves on one graph, with P on the vertical axis and Q on the horizontal axis. If the current price of tickets is $35, identify the quantity demanded by eachgroup.Both demand curves are downward sloping and linear. For the general public, the vertical intercept is 100 and the horizontal intercept is 500. For the students, the vertical interceptis 50 and the horizontal intercept is 200. The general public demands Q gp =500-5(35)=325tickets and the students demand Q s =200-4(35)=60 tickets.b. Find the price elasticity of demand for each group at the current price and quantity.The elasticity for the general public is εgp=-5(35)325=-0.54 and the elasticity for the students is εgp =-4(35)60=-2.33. If the price of tickets increases by one percent then the general public will demand .54% fewer tickets and the students will demand 2.33% fewertickets.c. Is the director maximizing the revenue he collects from ticket sales by charging $35 for eachticket? Explain.No he is not maximizing revenue since neither one of the calculated elasticities is equal to –1.Since demand by the general public is inelastic at the current price, the director could increase the price and quantity demanded would fall by a smaller amount in percentageterms, causing revenue to increase. Since demand by the students is elastic at the currentprice, the director could decrease the price and quantity demanded would increase by alarger amount in percentage terms, causing revenue to increase.d. What price should he charge each group if he wants to maximize revenue collected from ticketsales?To figure this out, find the formula for elasticity, set it equal to –1, and solve for price and quantity. For the general public:εgp =-5PQ=-15P=Q=500-5PP=50Q=250.For the students:εs =-4PQ=-14P=Q=200-4PP=25Q=100.9. The ACME Corporation determines that at current prices the demand for its computer chips has a price elasticity of -2 in the short run, while the price elasticity for its disk drives is -1.a. If the corporation decides to raise the price of both products by 10 percent, what will happen toits sales? To its sales revenue?We know the formula for the elasticity of demand is:EQP P=%%∆∆.For computer chips, E P = -2, so a 10 percent increase in price will reduce the quantity sold by20 percent. For disk drives, E P = -1, so a 10 percent increase in price will reduce sales by 10percent.Sales revenue is equal to price times quantity sold. Let TR1 = P1Q1 be revenue before the pricechange and TR2 = P2Q2 be revenue after the price change.For computer chips:∆TR cc = P2Q2 - P1Q1∆TR cc= (1.1P1 )(0.8Q1 ) - P1Q1 = -0.12P1Q1, or a 12 percent decline.For disk drives:∆TR dd = P2Q2 - P1Q1∆TR dd = (1.1P1 )(0.9Q1 ) - P1Q1 = -0.01P1Q1, or a 1 percent decline.Therefore, sales revenue from computer chips decreases substantially, -12 percent, while thesales revenue from disk drives is almost unchanged, -1 percent. Note that at the point on thedemand curve where demand is unit elastic, total revenue is maximized.b. Can you tell from the available information which product will generate the most revenue forthe firm? If yes, why? If not, what additional information do you need?No. Although we know the responsiveness of demand to changes in price, we need to knowboth quantities and prices of the products to determine total sales revenue.10. By observing an individual’s behavior in the situations outlined below, determine the relevant income elasticities of demand for each good (i.e., whether the good is normal or inferior). If you cannot determine the income elasticity, what additional information might you need?a. Bill spends all his income on books and coffee. He finds $20 while rummaging through a usedpaperback bin at the bookstore. He immediately buys a new hardcover book of poetry.Books are a normal good since his consumption of books increases with income. Coffee is anormal or neutral good since consumption of coffee did not fall when income increased.b. Bill loses $10 he was going to use to buy a double espresso. He decides to sell his new book at adiscount to his friend and use the money to buy coffee.Coffee is clearly a normal good.c. Being bohemian becomes the latest teen fad. As a result, coffee and book prices rise by 25percent. Bill lowers his consumption of both goods by the same percentage.Books and coffee are both normal goods since his response to a decline in real income is todecrease consumption of both goods.d. Bill drops out of art school and gets an M.B.A. instead. He stops reading books and drinkingcoffee. Now he reads The Wall Street Journal and drinks bottled mineral water.His tastes have changed completely, and we do not know exactly how he would respond toprice and income changes. We need more information regarding his new level of income, andrelative prices of the goods to determine the income elasticities.11. Suppose the income elasticity of demand for food is 0.5, and the price elasticity of demand is –1.0. Suppose also that Felicia spends $10,000 a year on food, the price of food is $2, and her income is $25,000.a.If a sales tax on food were to cause the price of food to increase to $2.50, what wouldhappen to her consumption of food? (Hint: Since a large price change is involved, youshould assume that the price elasticity measures an arc elasticity, rather than a pointelasticity.)The price of food increases from $2 to $2.50, so arc elasticity should be used:.We know that E P = -1, P = 2, ∆P = 0.5, and Q=5000. We also know that Q2, the new quantity, is Thus, if there is no change in income, we may solve for ∆Q:-1=∆Q0.5⎛⎝⎫⎭2+2.525,000+5,000+∆Q()2⎛⎝⎫⎭⎪⎪⎪.By cross-multiplying and rearranging terms, we find that ∆Q = -1,000. This means that she decreases her consumption of food from 5,000 to 4,000 units.b.Suppose that she is given a tax rebate of $2,500 to ease the effect of the sales tax.What would her consumption of food be now?A tax rebate of $2,500 implies an income increase of $2,500. To calculate the response of demand to the tax rebate, use the definition of the arc elasticity of income..We know that E I= 0.5, I = 25,000, ∆I = 2,500, Q = 4,000 (from the answer to 11.a). Assuming no change in price, we solve for ∆Q.0.5=∆Q2,500⎛⎝⎫⎭⎪25,000+27,50024,000+4,000+∆Q()2⎛⎝⎫⎭⎪⎪⎪.By cross-multiplying and rearranging terms, we find that ∆Q= 195 (approximately). This means that she increases her consumption of food from 4,000 to 4,195 units.c.Is she better or worse off when given a rebate equal to the sales tax payments? Draw agraph and explain.Felicia is likely to be better off after the rebate. The amount of the rebate is enough to allow her to purchase her original bundle of food and other goods. Recall that originally she consumed 5000 units of food. When the price went up by fifty cents per unit, she needed an extra 5000*$0.50=$2,500 to afford the same quantity of food without reducing the quantity of the other goods consumed. This is the exact amount of the rebate. However, she did not choose to return to her original bundle. We can therefore infer that she found a better bundle that gave her a higher level of utility. In the graph below, when the price of food increases, the budget line will pivot inwards. When the rebate is given, this new budget line will shift outwards. The bundle after the rebate is on that part of the new budget line that was previously unaffordable, and that lies above the original indifference curve.13. Suppose you are in charge of a toll bridge that costs essentially nothing to operate. The demand for bridge crossings Q is given by P =15-12Q . a. Draw the demand curve for bridge crossings. The demand curve is linear and downward sloping. The vertical intercept is 15 and thehorizontal intercept is 30.b.How many people would cross the bridge if there were no toll? At a price of zero, the quantity demanded would be 30. c. What is the loss of consumer surplus associated with a bridge toll of $5?If the toll is $5 then the quantity demanded is 20. The lost consumer surplus is the area below the price line of $5 and to the left of the demand curve. The lost consumer surplus canbe calculated as (5*20)+0.5(5*10)=$125.d. The toll bridge operator is considering an increase in the toll to $7. At this new higher price, how many people would cross the bridge? Would the toll bridge revenueincrease or decrease? What does your answer tell you about the elasticity of demand?At a toll of $7, the quantity demanded would be 16. The initial toll revenue was $5*20=$100.The new toll revenue is $7*16=$112. Since the revenue went up when the toll was increased, demand is inelastic (the increase in price (40%) outweighed the decline in quantitydemanded (20%)).e. Find the lost consumer surplus associated with the increase in the price of the tollfrom $5 to $7.The lost consumer surplus is (7-5)*16+0.5(7-5)(20-16)=$36.。
ch04_Motivation and Values
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4-5
Motivational Strength
• Biological vs. Learned Needs:
– Instinct: Innate patterns of behavior universal in a species – Tautology: Circular explanation (e.g. instinct is inferred from the behavior it is supposed to explain)
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Ads Reinforce Desired ates
• This ad for exercise shows men a desired state (as dictated by contemporary Western culture), and suggests a solution (purchase of equipment) to attain it.
4 - 17
Criticisms of Maslow’s Hierarchy
• The application is too simplistic:
– It is possible for the same product or activity to satisfy every need.
• It is too culture-bound:
– The assumptions of the hierarchy may be restricted to Western culture
• It emphasizes individual needs over group needs
– Individuals in some cultures place more value on the welfare of the group (belongingness needs) than the needs of the individual (esteem needs)
组织行为学英文版(第13版)ch04
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Copyright © 2015 Pearson Education, Inc.
LO 5
Describe Affective Events Theory and Identify Its Applications
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Copyright © 2015 Pearson Education, Inc.
AET offers two important messages: 1. Emotions provide valuable insights into how workplace hassles and uplifting events influence employee performance and satisfaction. 2. Emotions, and the events that cause them, should not be ignored at work because they accumulate.
LO 5
Describe Affective Events Theory and Identify Its Applications
An emotional episode is actually a series of emotional experiences triggered by a single event.
Current and past emotions affect job satisfaction.
Emotional fluctuations over time create variations in job performance.
Emotion-driven behaviors are typically brief and variable.
2004年考研英语一阅读理解第四篇
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2004年考研英语一阅读理解第四篇In the rapidly evolving digital landscape, the rise ofe-commerce has been nothing short of revolutionary. The fourth reading passage of the 2004 Graduate Entrance Exam English I Reading Comprehension section aptly captured this shift, discussing the significant changes in consumer behavior brought about by the increasing popularity ofonline shopping. This article delves deeper into the evolution of e-commerce and its profound impact on consumer behavior.The advent of the internet in the late 20th century marked a turning point in retail history. It democratized access to information, allowing consumers to compare prices, read reviews, and make informed decisions about their purchases. E-commerce platforms such as Amazon and eBay capitalized on this trend, providing a convenient andsecure means for individuals to buy and sell goods online.Initially, consumers were cautious about transacting online, due to concerns about security and privacy. However, as technology improved and online payment systems became more secure, trust in e-commerce grew. This trust wasfurther reinforced by the implementation of robust consumer protection policies and the establishment of trust marks, such as the well-known "https" in web addresses, indicating a secure connection.With the growth of e-commerce, consumer behavior also underwent significant changes. The convenience of online shopping led to a shift in purchasing patterns, with more consumers opting to buy products and services online instead of visiting physical stores. This trend was particularly pronounced during the COVID-19 pandemic, when lockdowns and social distancing measures forced many businesses to adapt their operations to an online-only model.Moreover, e-commerce has led to a more personalized shopping experience. Through data analysis and advanced algorithms, online retailers can now tailor their recommendations and marketing strategies to individual preferences. This personalization not only improves customer satisfaction but also drives up sales.Another significant impact of e-commerce is the emergence of new business models. The "direct-to-consumer"(D2C) model, for instance, allows brands to connectdirectly with their customers, bypassing traditional distributors and retailers. This model not only reduces costs but also enables brands to gather valuable feedback from consumers, enabling them to improve their products and services.In conclusion, the evolution of e-commerce has been transformative, not only for businesses but also for consumers. It has revolutionized the way we shop, making it more convenient, personalized, and secure. As technology continues to advance, we can expect e-commerce to bring about even more innovations in consumer behavior and retail practices.**电子商务的演变及其对消费者行为的影响**在快速变化的数字领域中,电子商务的崛起堪称革命性的。
ch04
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C H A P T E R4Public GoodsI NSTRUCTIONAL O BJECTIVESChapter 4 discusses the properties of public goods. The concept of a pure public good is developed and contrasted with the concept of a pure private good. Many examples are given to help students understand the important differences between these two types of goods. In addition, students are shown the impor-tant distinction between the demand curves for pure public goods and pure private goods. Throughout the chapter, the theory of externalities is applied to emphasize the fact that market provision of pure public goods is unlikely to be an efficient alternative. Intermediate cases between pure public goods and pure private goods are also analyzed. Congestible public goods and price-excludable public goods are explicitly considered along with many examples of other intermediate cases. The goal here is to make students aware of the fact that it is difficult to generalize about actual arrangements used to provide public goods.An important goal of this chapter is to derive the efficiency conditions for a pure public good. In deriving these conditions, I emphasize the external benefit associated with the provision of pure public goods. In this way, students see that consumption of a unit of a pure public good by any one person results in external benefits to all others. A pure public good, therefore, requires the annual output up to the point at which the sum of the marginal benefits of all consumers equals the marginal costs of making the good available. The sum of the individual marginal benefits is the marginal social benefit of each unit of the pure public good.An extended numerical example dealing with the provision of security protection in a small com-munity is used to derive the efficiency conditions and to illustrate a Lindahl equilibrium. The model of cooperative supply for a pure public good shows the student how the efficient output of a pure public good could be provided in a small community without government. It sets the stage for analysis of the free-rider problem and provides a basis for understanding why government supply with compulsorytaxation emerges in large groups.C HANGES IN T HIS E DITIONThe discussion of national defense has been updated with information on the new cabinet-level Depart-ment of Homeland Security, established by Congress in 2002. A discussion of the impact of homeland security on state government has been added to the chapter.C HAPTER O UTLINEThe Characteristics of Public GoodsPure Public Goods and Pure Private GoodsAn Example: Bread versus Heat2526| Part One | The Economic Basis of Government ActivityProvision of Private Goods and Public Goods: Markets and GovernmentCongestible Public Goods and Private Goods with ExternalitiesEducation as a Public GoodThe Demand for a Pure Public GoodEfficient Output of a Pure Public GoodA Numerical ExamplePublic Policy Perspective: National Defense and Homeland SecurityA Cooperative Method of Efficiently Supplying Pure Public Goods: Voluntary Contributions andCost SharingThe Lindahl EquilibriumGeneralizing the ResultsThe Free-Rider ProblemCompulsory FinanceInternational View: The Marginal Cost of the Persian Gulf War to the United States and HowInternational Cost-Sharing Financed ItM AJOR P OINTS AND L ECTURE S UGGESTIONS1.Students easily catch on to the distinctions between pure public goods and pure private goods.Television programming is an excellent example of a good that is nonrival in consumption. Animprovement in environmental quality through a reduction in air pollution provides a good exampleof a good whose benefits are nonexclusive. You can also point out that the transactions costs ofexcluding consumers depends on current technology. Improvements in technology can reduce thetransactions costs of pricing goods and thereby subject them to exclusion. A pure public good isboth nonrival and nonpriceable.2.I believe that it is important to relate the theory of public goods to the theory of externalities. Thishelps students understand why pure public goods are unlikely to be efficiently supplied throughmarkets. A pure public good is one whose market exchange would result in positive externalities toall citizens of a nation.3.I also like to emphasize that the nonrival characteristic of a pure public good implies that the mar-ginal cost of accommodating an additional consumer is zero for a given quantity of the good. UseFigure 4.1 in the text to make the distinction between the marginal cost of producing another unit ofthe good and the marginal cost of allowing another consumer to enjoy a given quantity of the good.4.Students like the bread versus heat example. To make the point more strongly, I usually adjust thethermostat level in the classroom to emphasize that there is no way I can change the temperaturefor myself without changing it for everyone else in the room.5.When discussing the difference between demand curves for pure public and pure private goods,point out that for private goods consumers have freedom to move along the quantity axis, givenprice. For the pure public good, consumers must move along the quantity axis together.6.Cooperative supply of pure public goods requires a means of allowing consumers to express theirvaluation of additional units of pure public goods. The marginal social benefit of any given quantityChapter Four | Public Goods | 27 of a pure public good is the sum of the individual marginal benefits of all consumers. To achieveefficiency, this must equal the marginal social cost of the good.7.The security guard example is quite realistic. Some students may in fact live in condominiums wherethe problem of providing security must be confronted and financed. I recommend going through theexample in class. I have been very careful in the text to point out that a person’s tax is stated as acertain amount per unit of the pure public good. Other texts are often sloppy on this point, and itleads to endless student confusion. The total tax bill in equilibrium for each member of the commu-nity is their tax per unit multiplied by the number of units supplied. The numerical example makesthis clear.8.Students readily see that the Lindahl equilibrium is efficient. The Lindahl prices are tax shares perunit of the public good equal to each person’s marginal benefit at the output for which MSB = MSC.9.The free-rider problem is intuitively obvious to students. Perhaps the best example to illustrate thisis the provision of public television and radio programming. It is clear that many beneficiaries ofthese services choose not to contribute to financing the programming. Nonetheless, many viewersand listeners do contribute. The analysis in the chapter alerts students to the fact that the free-riderproblem can be overcome. You should, however, point out to students that the free-rider problembecomes more acute in large groups. This is because each participant realizes that withholding hiscontribution is unlikely to have a significant effect on total output. As all reason this way, theprobability of no voluntary contributions becomes all the greater. Discussion of the free-riderproblem sets the stage for the analysis of compulsory taxation and the role of government insupplying pure public goods.10.The discussion of goods that fall between the extremes of pure public and pure private goods isvery pragmatic. The discussion and accompanying table alert students to the fact that in the realworld actual provision of goods by alternative means must be evaluated on an ad hoc basis. In classemphasize the characteristics of congestible and price-excludable public goods and point out theimplications for efficiency.T RUE/F ALSE Q UESTIONS1.Bread is an example of a good that is nonrival in consumption. (F)2. A pure public good is one for which it is easy to exclude consumers from benefits if they refuse topay. (F)3.The marginal social cost of producing another unit of a pure public good will always be positive. (T)4.To obtain a demand curve for a pure public good, the marginal benefit of each consumer must besummed for each possible quantity produced per time period. (T)5.If the efficient amount of a pure public good is produced, each person consumes it up to the point atwhich his or her marginal benefit equals the marginal social cost of the good. (F)6.In a Lindahl equilibrium, each consumer of a pure public good consumes the same quantity andpays a tax share per unit of the good equal to his or her marginal benefit. (T)7.If the marginal social cost of a pure public good exceeds its marginal social benefit, additional unitsof the good can still be financed by voluntary contributions. (F)28| Part One | The Economic Basis of Government Activity8.The free-rider problem is less acute in small groups than it is in large groups. (T)9. A congestible public good is one for which the marginal cost of allowing an additional consumer toenjoy the benefits of a given quantity is always zero. (F)10.Television programming is a good example of a price-excludable public good. (T)11.It is possible to price a pure public good and sell it by the unit. (F)12.The demand curve for a pure public good is obtained by adding the quantities demanded by eachindividual consumer at each possible price. (F)13. A Lindahl equilibrium usually has each participant paying the same tax share per unit of a publicgood even though their marginal benefit of that unit varies. (F)14.Internet service is an example of a price-excludable public good. (T)15.Clubs are a means of providing congestible public goods through markets. (T)M ULTIPLE C HOICE Q UESTIONS1. A pure public good is:a. one that can easily be sold by the unit.b. one that is nonrival in consumption.c. one whose benefits are not subject to exclusion.d. both (b) and (c)2.The marginal cost of providing a certain quantity of a pure public good to an additional consumerafter it is provided to any one consumer is:a. zero.b. positive and increasing.c. positive and decreasing.d. positive and constant.3.The nonrival property of pure public goods implies that the:a. benefits enjoyed by existing consumers decline as more consumers enjoy a given quantity ofthe good.b. benefits enjoyed by existing consumers are unaffected as more consumers enjoy a given quan-tity of the good.c. good cannot be priced.d. marginal cost of producing the good is zero.4.The demand curve for a pure public good is:a. a horizontal line.b. obtained by adding the quantities individual consumers would purchase at each possible price.c. obtained by adding the marginal benefit obtained by each consumer at each possible quantity.d. the marginal cost curve for the pure public good.Chapter Four | Public Goods | 295.The efficient output of a pure public good is achieved at the point at which:a. the marginal benefit obtained by each consumer equals the marginal social cost of producingthe good.b. the sum of the marginal benefits of all consumers equals the marginal social cost of producingthe good.c. the marginal benefit of each consumer equals zero.d. the marginal social cost of producing the good is zero.e. both (c) and (d)6.The monthly rental rate for a satellite dish antenna is $200. The maximum marginal benefit thatany resident of a condominium community will obtain per month from the antenna is $50. There are 100 residents in the community, none of whom values the antenna at less than $25 per month.Assuming that the antenna is a pure public good for residents of the community,a. each resident of the community will rent his own antenna.b. it is inefficient for the community to rent an antenna.c. it is efficient for the members of the community to rent an antenna for their common use.d. it is efficient for each resident to rent his own antenna.7.In a Lindahl equilibrium,a. each consumer purchases a pure public good up to the point at which his or her marginal bene-fit equals the marginal social cost of the good.b. each person pays a tax per unit of the pure public good equal to his or her marginal benefit.c. the sum of the marginal benefits of all consumers equals the marginal social cost of the good.d. both (a) and (c)e. both (b) and (c)8.The free-rider problem:a. becomes more serious as the number of persons involved in voluntarily financing a pure publicgood decreases.b. becomes more serious as the number of persons involved in voluntarily financing a pure publicgood increases.c. is independent of the number of persons involved in a scheme to voluntarily finance a purepublic good.d. does not prevent voluntary cooperation from efficiently providing pure public goods.9.The marginal cost of making a given quantity of a congestible public good available to more con-sumers is:a. always zero.b. positive and increasing.c. positive and decreasing.d. zero at first but eventually becomes positive and increasing.10.Cable TV programming is an example of a:a. congestible public good.b. price-excludable public good.c. pure public good.d. pure private good.30| Part One | The Economic Basis of Government Activity11. A major distinction between pure public goods and pure private goods is that:a. pure private goods can easily be priced and sold in markets.b. pure public goods can easily be divided into units.c. pure public goods can only be collectively consumed.d. both (a) and (c)12.The principle of nonexclusion for pure public goods means that the benefits of the good:a. are shared.b. can be priced.c. cannot be withheld from consumers even if they refuse to pay.d. are not reduced to any one consumer when a given quantity is consumed by another.13.Which of the following is true in a Lindahl equilibrium for cooperative supply of a pure publicgood?a. The sum of the tax shares per unit paid by each consumer is equal to the marginal social cost ofthe public good.b. The sum of the tax shares per unit paid by each consumer is equal to the marginal social benefitof the good.c. The sum of the tax shares per unit paid by each consumer is maximized.d. both (a) and (b)14.Which of the following is a good example of a congestible public good?a. TV programmingb. a roadc. a loaf of breadd. homeland securitycation is:a. a pure public good.b. a pure private good.c. a good that has characteristics of both public goods and private goods.d. not subject to the exclusion principle.E SSAY Q UESTIONS1.Summer open-air concerts are a pure public good in a small town. The average cost of each concertper night is constant at $500. Explain why it would be inefficient to require each resident of a com-munity to hire their own orchestra at the $500 rate for each concert. Assuming that the marginalbenefit of the first concert is $25 for each of the 1,000 residents of the community, prove that it willbe efficient to have more than one concert per summer. If the concert were financed with voluntarycontributions, what conditions would have to prevail to achieve the efficient number of concerts persummer?2.The property of nonexclusion of a pure public good depends on the technology of pricing. Changesin technology can make it possible to price goods and services that were previously unpriceable.Suppose a new electronic device is available that can monitor the miles travelled by vehicles onChapter Four | Public Goods | 31 public roads. The device would be required on all vehicles and would make it feasible to price eachmile travelled at any rate. How would you determine the price of road services per mile to achieveefficient road utilization?A NSWERS TO T EXT P ROBLEMS1. a. 10b. $2,000c. zerod. 22.The sum of the marginal benefits must equal the marginal cost in the Lindahl equilibrium. WhenMC is increasing, MC > AC for any given quantity supplied. At the efficient level of output, thesum of the contributions will be greater than AC. Because contributions per unit exceed cost perunit, the total revenue collected will exceed the cost of making the good available, which is AC(Q).Thus, there is a budget surplus.3.At less than 50,000 vehicles per hour, no toll is required to achieve efficiency. When traffic risesabove 50,000 vehicles per hour, the toll should be set at the marginal congestion cost.4. a. The demand curve shows how the sum of the marginal benefits of all consumers varies withthe number of concerts.Number of Concerts MB1 $9752 $7003 $4254 $250b. At a marginal cost of $1,000, it is efficient not to hold any outdoor rock concerts at all. At amarginal cost of $425, the efficient number of concerts per summer is three.5.The efficient number of concerts would be four; John would be charged $75, and Mary would becharged $50, while Loren would pay $25 for each concert.。
如何做一个有道德的消费者英语作文
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How to Be an Ethical ConsumerIn the modern world, consumerism has become a significant aspect of our daily lives. As consumers, we have the power to shape the market and influence businesses' practices. However, with this power comes a responsibility to act ethically and make informed choices. Being an ethical consumer means being aware of the impact of our purchases and making decisions that align with our values and promote sustainability. Here are some tips on how to become an ethical consumer.Firstly, understand the supply chain. It is essential to be aware of where the products we consume come from and how they are produced. Researching the supply chain can help us identify unethical practices such as child labor, environmental degradation, and animal cruelty. Buying from companies that prioritize sustainability and ethical practices can ensure that our purchases do not contribute to these issues.Secondly, prioritize quality over quantity. Instead of buying cheaply made, disposable items that will quickly break or become obsolete, invest in longer-lasting, high-quality products. This approach reduces waste and supports companies that prioritize durability and sustainability.Thirdly, support local businesses. Buying locally produced goods not only supports local economies but also reduces the environmental impact of transportation. Local businesses often have stronger ties to the community and are more likely to prioritize ethical practices.Fourthly, reduce consumption. Consume mindfully and avoid impulsive buying. Think twice before making a purchase and ask yourself if you really need the item or if it aligns with your values. Reducing consumption can help mitigate the environmental and social impacts of overconsumption.Lastly, educate yourself. Stay informed about ethical consumption issues and trends. Read about companies' sustainability efforts, consumer rights, and environmental impacts of various products. The more we know, the better equipped we are to make ethical choices as consumers.In conclusion, being an ethical consumer is not just about individual choices; it's about collective action. Our purchases have the power to shape the market and influencebusinesses to adopt more sustainable and ethical practices. By understanding the supply chain, prioritizing quality, supporting local businesses, reducing consumption, and educating ourselves, we can make a significant impact as ethical consumers.**如何做一个有道德的消费者**在当今世界,消费主义已成为我们日常生活的重要组成部分。
有道德的消费者英语作文
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有道德的消费者英语作文Moral Consumers: Shaping a Sustainable FutureIn today's fast-paced, consumer-driven world, our choices as individuals have a profound impact on the world around us. As we navigate the vast array of products and services available, it is increasingly important to consider the ethical and sustainable implications of our purchasing decisions. The role of the moral consumer has become paramount in shaping a more just and environmentally conscious future.At the heart of being a moral consumer lies a deep understanding of the interconnectedness of our actions and their consequences. Every time we open our wallets, we are casting a vote for the kind of world we want to live in. Do we support companies that prioritize profit over people and the planet or do we choose to align our spending with businesses that uphold ethical practices and environmental stewardship?One of the key aspects of moral consumerism is the awareness of the supply chain and the conditions under which the goods and services we consume are produced. From the labor practices of workers infactories to the environmental impact of resource extraction, the choices we make as consumers have far-reaching implications. By educating ourselves and making informed decisions, we can use our purchasing power to incentivize positive change and hold companies accountable for their actions.Consider the case of fast fashion. The industry's relentless pursuit of cheap, trendy clothing has led to the exploitation of workers, particularly in developing countries, and the generation of vast amounts of textile waste. Moral consumers have the power to push back against this unsustainable model by opting for ethically-sourced, long-lasting garments and supporting brands that prioritize fair wages, safe working conditions, and environmentally-friendly production methods.Similarly, in the realm of food consumption, moral consumers can make a significant impact by choosing to support local, organic, and sustainable agriculture. By purchasing from small-scale farmers and producers, we not only ensure the quality and freshness of our food but also contribute to the preservation of local ecosystems and the livelihoods of rural communities. Furthermore, reducing our meat consumption and opting for plant-based alternatives can help mitigate the environmental toll of industrial animal agriculture.Beyond the realm of products, moral consumers can also exertinfluence in the services they choose to utilize. From banking and investment to transportation and energy, our selection of providers can shape the direction of entire industries. By aligning our financial decisions with institutions that uphold ethical and sustainable practices, we can catalyze a shift towards a more equitable and environmentally responsible economic system.The power of moral consumerism extends even to the digital realm. In an age where our personal data has become a valuable commodity, we must be vigilant about the companies we entrust with our information and the ways in which they use it. Moral consumers can make a difference by prioritizing privacy-focused technologies, supporting ethical social media platforms, and boycotting organizations that engage in unethical data collection and exploitation.While the concept of moral consumerism may seem daunting, it is important to recognize that every individual action, no matter how small, can contribute to a larger, collective movement for change. By adopting a mindset of conscious consumption, we can collectively shape the market and influence the priorities of businesses, ultimately driving a transition towards a more sustainable and equitable future.At the same time, it is crucial to acknowledge that the ability to be amoral consumer is not equally accessible to all. Socioeconomic factors, access to information, and systemic barriers can limit the choices available to certain individuals and communities. As moral consumers, we must also advocate for policies and initiatives that address these disparities and ensure that ethical and sustainable options are available to all.In conclusion, the role of the moral consumer is paramount in addressing the pressing social and environmental challenges of our time. By aligning our purchasing decisions with our values, we can send a powerful message to businesses and policymakers, ultimately driving the change we wish to see in the world. Through collective action and a steadfast commitment to ethical and sustainable practices, we can create a future where prosperity and environmental stewardship go hand in hand, and where the well-being of all is the guiding principle of our economic and social systems.。
怎样做一个有道德的消费者英语作文
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怎样做一个有道德的消费者英语作文全文共3篇示例,供读者参考篇1How to Be an Ethical ConsumerIn today's society, being a responsible consumer goes beyond just looking for the best price or the latest trends. It also means considering the ethical implications of our purchasing decisions. As consumers, we have the power to make a positive impact on the world by choosing products that are ethically produced and environmentally friendly. Here are some tips on how to be an ethical consumer:1. Do Your Research: Before making a purchase, take the time to research the company and their practices. Look for information on their sourcing, manufacturing processes, and labor practices. Make sure they are transparent about their operations and have certifications that ensure they meet ethical standards.2. Buy Fair Trade: When possible, choose products that are certified Fair Trade. Fair Trade ensures that producers are paid a fair price for their goods, and that labor conditions are safe andethical. By supporting Fair Trade products, you are helping to improve the lives of workers in developing countries.3. Avoid Fast Fashion: Fast fashion companies often prioritize profit over ethical considerations, leading to poor working conditions, low wages, and environmental damage. Instead of supporting these companies, opt for sustainable fashion brands that use ethical production methods and prioritize environmental sustainability.4. Choose Ethical Food: When purchasing food products, look for organic, locally-sourced, and sustainably-produced options. Support farmers and producers who use environmentally-friendly farming practices and treat their workers fairly.5. Reduce, Reuse, Recycle: One of the best ways to be an ethical consumer is to reduce your consumption in the first place. Opt for reusable products, buy second-hand items, and recycle whenever possible. By reducing waste, you are minimizing your impact on the environment and promoting sustainability.6. Support Ethical Brands: Look for companies that have a track record of ethical behavior and social responsibility. Support businesses that give back to their communities, promotediversity and inclusivity, and prioritize ethical practices throughout their operations.7. Be a Conscious Consumer: Think about the impact of your purchases beyond just the price tag. Consider the social, environmental, and ethical implications of your buying decisions. By being a conscious consumer, you can make a positive difference in the world and support companies that share your values.In conclusion, being an ethical consumer is about more than just buying products – it's about making informed choices that align with your values and principles. By following these tips and being mindful of the impact of your purchases, you can contribute to a more sustainable and ethical economy. Remember, every purchase you make has the power to make a difference – so choose wisely and be a responsible consumer.篇2How to be an Ethical ConsumerWith the rise of consumerism and globalization, it is becoming increasingly important for individuals to be mindful of the impact their purchasing decisions have on society, the environment, and various communities. Being an ethicalconsumer means making conscious choices that align with your values and have a positive impact on the world around you. Here are some tips on how to be an ethical consumer:1. Research the company: Before making a purchasing decision, take the time to research the company behind the product. Look into their values, practices, and policies to ensure they align with your own values. Choose companies that prioritize ethical practices, fair trade, sustainability, and social responsibility.2. Buy local: Whenever possible, support local businesses and artisans. Buying locally not only supports the local economy but also reduces the carbon footprint of the product by minimizing transportation and packaging costs. Plus, you will have the opportunity to meet and support the people who create the products you love.3. Choose sustainable products: Look for products that are made from sustainable materials, are produced using environmentally-friendly processes, and are recyclable or biodegradable. By choosing sustainable products, you can reduce your impact on the environment and contribute to a healthier planet.4. Avoid products with harmful ingredients: Be mindful of the ingredients used in the products you buy, especially when it comes to food, beauty products, and household cleaners. Avoid products with harmful chemicals, additives, or preservatives that can be damaging to your health and the environment.5. Support ethical brands: Seek out brands that are committed to ethical sourcing, fair labor practices, and social impact. Look for certifications such as Fair Trade, B Corp, or Organic certification to ensure that the products you are buying are produced ethically and responsibly.6. Reduce, reuse, recycle: Practice the three Rs - reduce, reuse, recycle - in your daily life. Reduce your consumption by buying only what you need, reuse items whenever possible, and recycle materials to minimize waste and conserve resources.7. Shop consciously: Be mindful of your purchasing habits and the impact they have on the world. Consider the true cost of a product, including its social, environmental, and economic impact. Choose quality over quantity and invest in products that are made to last.By following these tips, you can be a more ethical consumer and make a positive difference in the world. Remember that every purchase you make has the power to shape the future, sochoose wisely and support companies that share your values.Together, we can create a more sustainable, equitable, and ethical world through our everyday purchasing decisions.篇3How to be an Ethical ConsumerIn today's society, being an ethical consumer is becoming increasingly important as we become more aware of the impact our purchasing decisions have on the environment, society, and economy. However, it can be challenging to know where to start when it comes to making ethical choices as a consumer. In this article, we will discuss some tips on how to be an ethical consumer and make responsible purchasing decisions.1. Do your researchOne of the most important things you can do as an ethical consumer is to research the products you are planning to purchase. Look into the company's values, policies, and practices to see if they align with your own ethical standards. You can also look for certifications such as Fair Trade, Organic, or Cruelty-Free to ensure that the products you are buying meet certain ethical standards.2. Support local and small businessesOne way to be an ethical consumer is to support local and small businesses. By buying locally-produced goods, you are supporting your community and reducing the environmental impact of shipping products long distances. Small businesses also tend to have more transparent supply chains and are often more ethically-minded than large corporations.3. Consider the environmental impactWhen making purchasing decisions, it is important to consider the environmental impact of the products you are buying. Look for products that are sustainably sourced, made from recycled materials, or have minimal packaging. Avoid products that contribute to deforestation, water pollution, or carbon emissions.4. Buy second-hand and reduce wasteAnother way to be an ethical consumer is to buysecond-hand items whenever possible. Thrifting and shopping at consignment stores not only reduces waste but also helps to support a circular economy. By extending the life of a product, you are reducing the demand for new goods and decreasing your overall environmental impact.5. Be mindful of labor practicesWhen purchasing products, it is important to be mindful of the labor practices of the companies you are supporting. Look for products that are made in factories with fair wages, safe working conditions, and labor rights protections. Avoid products that are made using child labor, forced labor, or exploitative practices.6. Be a conscious consumerBeing an ethical consumer is about being mindful of the impact your purchasing decisions have on the world around you. Before making a purchase, consider whether you really need the item, if there are more ethical alternatives available, and how the product was made. It is important to remember that every purchase we make has the power to create positive change in the world.In conclusion, being an ethical consumer is an ongoing process that requires awareness, research, and mindfulness. By making responsible purchasing decisions, you can help to create a more sustainable, just, and ethical world for future generations. By following the tips outlined in this article, you can become a more ethical consumer and make a positive impact on the world around you.。
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Figure 4.3 Achieving Goals by Subscribing to a Magazine
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Figure 4.4 Different Appeals for Same Goal Object
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Motivations and Goals
• Positive Motivation • Negative Motivation – A driving force – A driving force toward some away from some object or condition object or condition • Approach Goal • Avoidance Goal
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Figure 4.8 Cognitive Need Arousal
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Philosophies Concerned With Arousal of Motives
• Behaviorist School
– Behavior is response to stimulus – Elements of conscious thoughts are to be ignored – Consumer does not act, but reacts
Figure 4.9 Maslow’s Hierarchy of Needs
Self-Actualization (Self-fulfillment) Ego Needs (Prestige, status, self esteem) Social Needs (affection, friendship, belonging)
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The Dynamic Nature of Motivation
• Needs are never fully satisfied • New needs emerge as old needs are satisfied • People who achieve their goals set new and higher goals for themselves
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The Selection of Goals
• The goals selected by an individual depend on their:
– – – – Personal experiences Physical capacity Prevailing cultural norms and values Goal’s accessibility in the physical and social environment
• • • • Aggression Rationalization Regression Withdrawal • • • • Projection Autism Identification Repression
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Arousal of Motives
• • • • Physiological arousal Emotional arousal Cognitive arousal Environmental arousal
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Figure 4.6 New and Higher Goals Motivate Behavior
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Figure 4.7 Changing Consumer Needs
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Frustration
Failure to achieve a goal may result in frustration. Some adapt; others adopt defense mechanisms to protect their ego.
Tension
Drive
Behavior
Cognitive processes
Tension reduction
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Types of Needs
• Innate Needs
– Physiological (or biogenic) needs that are considered primary needs or motives
Safety and Security Needs (Protection, order, stability) Physiological Needs (Food, water, air, shelter, sex)
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Table 4.3 Murray’s List of Psychogenic Needs
• Product-Specific Goals
– the specifically branded products or services that consumers select as their goals – e.g., “I want to get an MBA in Marketing from Kellogg School of Management.”
• Cognitive School
– Behavior is directed at goal achievement – Need to consider needs, attitudes, beliefs, etc. in understanding consumer behavior
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A Trio of Needs
• Power
– individual’s desire to control environment
• Affiliation
– need for friendship, acceptance, and belonging
• Achievement
– need for personal accomplishment – closely related to egoistic and self-actualization needs
– A positive goal toward which behavior is directed – A negative goal from which behavior is directed away
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Rational Versus Emotional Motives
• Rationality implies that consumers select goals based on totally objective criteria such as size, weight, price, or miles per gallon • Emotional motives imply the selection of goals according to personal or subjective criteria
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Table 4.3 Murray’s List of Psychogenic Needs
Sado-Masochistic Needs : Aggression, Abasement Needs Concerned with Affection between People: Affiliation, Rejection, Nurturance, Succorance, Play
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Figure 4.12 Appeal to Power Needs
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Figure 4.13 Appeal to Affiliation Needs
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Figure 4.14 Appeal to Achievement Needs
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Motivational Research
Needs Associated with Inanimate Objects: Acquisition, Conservancy, Order, Retention, Construction
Needs Reflecting Ambition, Power, Accomplishment, and Prestige: Superiority, Achievement, Recognition, Exhibition, Infavoidance Needs Connected with Human Power: Dominance, Deferrence, Similance, Autonomy, Contrariance
Needs Concerned with Social Intercourse: Cognizance, Exposition
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Figure 4.10 Appeal to Egoistic Needs
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Figure 4.11 Appeal to SelfActualization
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• Acquired needs
– Generally psychological (or psychogenic) needs that are considered secondary needs or motives
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Goals
• Generic Goals
– the general categories of goals that consumers see as a way to fulfill their needs – e.g., “I want to get a graduate degree.”
Consumer Behavior, Eighth Edition
SCHIFFMAN & KANUK
Chapter 4
The Consumer as an Individual
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Figure 4.1 Model of the Motivation Process