国际经济学作业答案-第八章
国际经济学第三版习题答案
第一章练习与答案此答案有很多这是提示,具体的可以从课本中找。
而且重点标记的是考试常考的!1.为什么说在决定生产和消费时,相对价格比绝对价格更重要?答案提示:当生产处于生产边界线上,资源则得到了充分利用,这时,要想增加某一产品的生产,必须降低另一产品的生产,也就是说,增加某一产品的生产是有机会机本(或社会成本)的。
生产可能性边界上任何一点都表示生产效率和充分就业得以实现,但究竟选择哪一点,则还要看两个商品的相对价格,即它们在市场上的交换比率。
相对价格等于机会成本时,生产点在生产可能性边界上的位置也就确定了。
所以,在决定生产和消费时,相对价格比绝对价格更重要。
2.仿效图1—6和图1—7,试推导出Y商品的国民供给曲线和国民需求曲线。
答案提示:3.在只有两种商品的情况下,当一个商品达到均衡时,另外一个商品是否也同时达到均衡?试解释原因。
答案提示:4.如果生产可能性边界是一条直线,试确定过剩供给(或需求)曲线。
答案提示:5.如果改用Y商品的过剩供给曲线(B国)和过剩需求曲线(A国)来确定国际均衡价格,那么所得出的结果与图1—13中的结果是否一致?答案提示:国际均衡价格将依旧处于贸易前两国相对价格的中间某点。
6.说明贸易条件变化如何影响国际贸易利益在两国间的分配。
答案提示:一国出口产品价格的相对上升意味着此国可以用较少的出口换得较多的进口产品,有利于此国贸易利益的获得,不过,出口价格上升将不利于出口数量的增加,有损于出口国的贸易利益;与此类似,出口商品价格的下降有利于出口商品数量的增加,但是这意味着此国用较多的出口换得较少的进口产品。
对于进口国来讲,贸易条件变化对国际贸易利益的影响是相反的。
7.如果国际贸易发生在一个大国和一个小国之间,那么贸易后,国际相对价格更接近于哪一个国家在封闭下的相对价格水平?答案提示:贸易后,国际相对价格将更接近于大国在封闭下的相对价格水平。
8.根据上一题的答案,你认为哪个国家在国际贸易中福利改善程度更为明显些?答案提示:小国。
国际经济学第五版关键词、复习与思考答案:第8章 贸易保护政策的理论依据
第八章贸易保护政策的理论依据一、关键词1. 最优关税。
最优关税是指使本国福利达到最大的关税水平。
2. 幼稚产业。
幼稚产业是指处于成长阶段、尚未成熟但具有潜在优势的产业。
3. 穆勒标准。
穆勒标准认为, 当某产业的规模较小、生产成本高于国际市场价格时,如果任其参与自由竞争,该产业必然会亏损。
如果政府给予一段时间的保护,使该产业能够发展壮大,以充分实现规模经济、降低成本,以致该产业最终能够完全面对自由竞争并且获得利润,那么该产业就可以作为幼稚产业加以扶植。
其强调的是将来成本上的优势地位。
4. 巴斯塔布尔标准。
巴斯塔布尔标准认为,判断一种产业是否属于幼稚产业,不仅要看将来是否具有竞争优势,还要将保护成本与该产业未来所能获得的预期利润的贴现值加以比较之后才能确定。
如果未来预期利润的贴现值小于目前的保护成本,那么对该产业进行保护是得不偿失的,因此该产业就不能作为幼稚产业加以保护;如果未来预期利润的贴现值大于保护成本,那么对该产业加以保护才是值得的。
5. 肯普标准。
肯普标准认为,如果某一产业能够产生外部经济效应,即使该产业不符合巴斯塔布尔标准,但是只要在其保护之后,能够产生显著的外部经济效应,就仍有保护的必要。
6. 自我加强的比较优势标准。
克鲁格曼认为,在许多情况下,通过正反馈过程,产业似乎能创造自己的比较优势。
假设一个国家由于某种原因,某特定产业特别强大,那么这种情况可以导致外部经济,从而加强该产业的力量。
如果外部经济非常强大,国际分工模式就难以确定。
在产业成长的初期,或者在现存的比较优势模式不再适应技术或市场变化的转型时期,一个国家可能因为偶然的历史事件或者政府的支持,在某产业获得领先地位。
这种地位一旦确立,它就能够自我加强,并且一直存在下去。
7. 战略性贸易政策。
战略性贸易政策是指一国政府运用政策干预手段,把国外垄断企业的一部分垄断利润转移给本国企业或消费者的政策。
之所以称为“战略性”,是因为这种政府政策能够改变国内外垄断企业之间的竞争关系,使得本国垄断企业在国际市场的竞争中处于优势地位,并且获得国内经济利益。
国际经济学课程学习题集及参考答案
国际经济学习题集及参考答案一、填空、选择、判断题(每题1分):第一章:1、国际贸易理论以微观经济学原理为基础,讨论世界范围内的资源配置问题。
2、最常用国际贸易模型的结构形式为两个国家、两种产品(或部门)和两种要素。
3、在完竞争的假设前提下,封闭条件下的相对价格是国际贸易产生的基础。
4、国家间的供给、需求方面的差异是造成相对价格的根源。
5、贸易后,国际均衡价格由两国的供需共同决定,国际均衡价格处于两国封闭下的相对价格之间。
6、国际贸易利益包括两个部分:来自交换的利益和来自专业化的利益。
7、贸易理论主要围绕三个问题展开:国际贸易的格局、国际贸易的条件、国际贸易的收益。
第二章:1、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;李嘉图的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
2、哈伯勒首先用机会成本概念来阐明比较优势论。
3、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
4、李嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
5、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;劳动生产率的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
6、在李嘉图模型中,生产可能性边界线方程是一个线性方程式,表示A、B两国的PPF曲线是一条直线段。
7、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
8、李嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
9、机会成本概念表明:彼种选择的机会成本就构成此种选择的机会成本。
选择题:1、首先用机会成本理论来解释比较优势原理的学者是: C、A、李嘉图B、罗布津斯基C、哈伯勒D、穆勒第三章:1、要素禀赋理论最初是由赫克歇尔和俄林提出的,后经萨缪尔森等人加工不断完善。
2、要素禀赋理论由H-O定理、要素价格均等化定理和罗伯津斯基定理、斯托伯-萨缪尔森定理等构成3、要素价格均等化理论指出国际贸易通过商品价格的均等化会导致要素价格的均等化,从而在世界范围实现资源的最佳配置。
国际经济学课后答案
(1),本国共有1200单位的劳动,能生产两种产品:苹果和香蕉。
苹果的单位产品 劳动投入是3,香蕉的单位劳动产品投入时 2。
a. 画出本国的生产可能性边界。
b. 用香蕉衡量的苹果的机会成本是多少c. 贸易前,苹果对香蕉的相对价格是多少为什么答:a.本国的生产可能性边界曲线是直线,在400( 1200/3)处与苹果轴相截,(1200/2 )处与香蕉轴相截,如图 2-7所b.用香蕉衡量苹果的机会成本是 3/2。
单位苹果需要3单位的劳动,生产1单位单位的劳动可以被用来生产 3/2单位的香蕉c.劳动的流动性可以使得各个部门的工资趋同,竞争可以使得商品的价格等于它们的生产成本。
这样,相对价格等于相对成本,而相对成本等于工资乘以苹果的单位劳动产品投入。
因为各个部门工资相等,所以价格比率等于单位产品劳动投入的比率,即生产苹果所需的3单位劳动与生产香蕉所需的 2单位劳动比率。
(2)假设本国的情况和习题 1相同。
外国拥有800单位的劳动,外国苹果的 单位劳动投入是5,香蕉的单位产品劳动投入是 1。
a. 画出外国的生产可能性边界。
需要2单位的劳动 如果放弃1单位苹果的生产, 这将释放国生产可能勺劳动。
一条 在600 示。
生产1香蕉b. 画出世界相对供给曲线。
答:a.外国的生产可能性边界曲线是一条直线,在160 (800/5 )处与苹果轴相截,在800(800/1)处与香蕉轴相截。
如图2-8所示b.世界相对供给曲线可以由苹果和香蕉的相对价格和相对供给量绘出。
如图2-9。
从图2-9可以看出,苹果对香蕉的最低相对价格是3/2图在这个价格相对供给曲的世界相对供给曲线是水平曲在3/2的木酣价格上世界相国对苹果的最大供给量是400,外国对香蕉的供给量是800,这时,相对供给量为1/2。
只要相对价格保持在3/2和5之间,产量相对供给量就不变。
如果相对价格成为5,两个国家都会生产苹果,香蕉的产量为零。
这时,相对供给曲线是水平的。
国际经济学课后习题答案(精编文档).doc
【最新整理,下载后即可编辑】这是我在网上找的,大多数题目都有,朋友们可以参考一下!有一点不确定的是G—L指数,大家再上网查看看,是乘100还是乘1?希望可以给你们帮助,预祝大家顺利通过!第二章古典国际贸易理论在古典贸易模型中,假设A国有120名劳动力,B国有50名劳动力,如果生产棉花的话,A国的人均产量是2吨,B国也是2吨;要是生产大米的话,A国的人均产量是10吨,B国则是16吨。
画出两国的生产可能性曲线并分析两国中哪一国拥有生产大米的绝对优势?哪一国拥有生产大米的比较优势?思路:B国由于每人能生产16吨大米,而A国每人仅生产10吨大米,所以B国具有生产大米的绝对优势。
从两国生产可能性曲线看出A国生产大米的机会成本为0.2,而B国为0.125,所以B国生产大米的机会成本或相对成本低于A国,B国生产大米具有比较优势。
1.下表列出了加拿大和中国生产1单位计算机和1单位小麦所需的劳动时间。
假定生产计算机和小麦都只用劳动,加拿大的总劳动为600小时,中国总劳动为800小时。
(1)计算不发生贸易时各国生产计算机的机会成本。
(2)哪个国家具有生产计算机的比较优势?哪个国家具有生产小麦的比较优势?(3)如果给定世界价格是1单位计算机交换22单位的小麦,加拿大参与贸易可以从每单位的进口中节省多少劳动时间?中国可以从每单位进口中节省多少劳动时间?如果给定世界价格是1单位计算机交换24单位的小麦,加拿大和中国分别可以从进口每单位的货物中节省多少劳动时间?(4)在自由贸易的情况下,各国应生产什么产品,数量是多少?整个世界的福利水平是提高还是降低了?试用图分析。
(以效用水平来衡量福利水平)思路:(1)中国生产计算机的机会成本为100/4=25,加拿大为60/3=20(2)因为加拿大生产计算机的机会成本比中国低,所以加拿大具有生产者计算机的比较优势,中国就具有生产小麦的比较优势。
(3)如果各国按照比较优势生产和出口,加拿大进口小麦出口计算机,中国进口计算机出口小麦。
《国际经济学》篇章精选练习题与答案
第1章绪论重点问题:国际经济学的产生、发展、对象及其其他经济学科的关系单选1.国际经济学分析的最基本的出发点是(B)A经济增长 B经济自然增长 C制度创新的经济增长 D经济发展2.经济发展是(D)A经济结构的变革 B社会和政治体制的变革 C经济自然增长 D制度创新的经济增长3.国际经济最基本的出发点是(B )A社会分工 B国际分工 C产业分工 D产业之间的分工和合作4.国际经济交往的主要方式是(A)A生产要跨国界流动 B国际分工 C商品跨国界流通 D开放经济第2章古典国际贸易理论重点问题:绝对利益说的基本容及其评价比较利益说的基本容及其评价单选1.在斯密的绝对优势贸易理论中,(C)。
A所有产品均具有绝对优势的国家最终将获得全部黄金和B具有绝对优势的国家将获得大量贸易余额C如果两个国家分别出口本国劳动成本相对较低的产品,将同时从贸易中获益D如果一国不用关税壁垒保护本国产业,将丧失绝对优势2.嘉图的比较优势理论指出,(B)。
A贸易导致不完全专业化B即使一个国家不具有绝对成本优势,也可以从出口绝对成本劣势相对较小的产品中获益C与不具备绝对成本优势的国家相比,具有绝对成本优势的国家可以从贸易中获利更多D只有具备比较优势的国家才能获得贸易余额3.如果一个阿根廷工人能生产3蒲式耳小麦或1辆汽车,而一个巴西工人能生产4蒲式耳小麦或2辆汽车,则(D)。
A巴西在小麦和汽车生产上都具有绝对优势,而阿根廷没有比较优势B阿根廷在小麦和汽车生产上都具有绝对优势,而巴西没有比较优势C巴西在小麦和汽车生产上都具有绝对优势,而阿根廷在汽车生产上具有比较优势D巴西在小麦和汽车生产上都具有绝对优势,而阿根廷在小麦生产上具有比较优势4.根据比较优势原理的政策经验,一国从国际贸易中获益的条件是(B)。
A制造大量出口顺差 B以较低的机会成本进口商品而不是在国生产C本国比贸易伙伴强大 D本国相对于贸易伙伴具备绝对效率优势5.比较利益理论认为国际贸易的驱动力是( A )A.劳动生产率的差异B.技术水平的差异C.产品品质的差异D.价格的差异6.在比较利益模型中,两种参与贸易商品的国际比价( C )A.在两国贸易前的两种商品的国比价之上B.在两国贸易前的两种商品的国比价之下C.在两国贸易前的两种商品的国比价之间D.与贸易前的任何一个国家的国比价相同简答:1.请从国际贸易实际出发评价绝对利益说 P20斯密的绝对利益学说揭示了在自由市场经济条件下,国际贸易产生的原因在于两国之间劳动生产率的绝对差异,按照绝对利益学说的原则进行国际分工,贸易的参与者与整个世界会因此而获得利益。
国际经济学作业答案-第八章
Chapter 8 The Instruments of Trade PolicyMultiple Choice Questions1、Specific tariffs are(a) import taxes stated in specific legal statutes、(b) import taxes calculated as a fixed charge for each unit of imported goods、(c) import taxes calculated as a fraction of the value of the imported goods、(d) the same as import quotas、(e) None of the above、Answer: B2、Ad valorem tariffs are(a) import taxes stated in ads in industry publications、(b) import taxes calculated as a fixed charge for each unit of imported goods、(c) import taxes calculated as a fraction of the value of the imported goods、(d) the same as import quotas(e) None of the above、Answer: C3、The excess supply curve of a product we (H) import from foreign countries (F) increases as(a) excess demand of country H increases、(b) excess demand of country F increases、(c) excess supply of country H increases、(d) excess supply of country F increases、(e) None of the above、Answer: D4、If a good is imported into (large) country H from country F, then the imposition of a tariffin country H(a) raises the price of the good in both countries (the “Law of One Price”)、(b) raises the price in country H and cannot affect its price in country F、(c) lowers the price of the good in both countries、(d) lowers the price of the good in H and could raise it in F、(e) raises the price of the good in H and lowers it in F、Answer: E5、If a good is imported into (small) country H from country F, then the imposition of a tariff Incountry H(a) raises th e price of the good in both countries (the “Law of One Price”)、(b) raises the price in country H and does not affect its price in country F、(c) lowers the price of the good in both countries、(d) lowers the price of the good in H and could raise it in F、(e) raises the price of the good in H and lowers it in F、Answer: B6、If a good is imported into (large) country H from country F, then the imposition of a tariff in countryH in the presence of the Metzler Paradox,(a) raises the price of the good in bo th countries (the “Law of One Price”)、(b) raises the price in country H and cannot affect its price in country F、(c) lowers the price of the good in both countries、(d) lowers the price of the good in H and could raise it in F、(e) raises the price of the good in H and lowers it in F、Answer: C7、The effective rate of protection measures(a) the “true” ad valorum value of a tariff、(b) the quota equivalent value of a tariff、(c) the efficiency with which the tariff is collected at the customhouse、(d) the protection given by the tariff to domestic value added、(e) None of the above、Answer: D8、If the tariff on puters is not changed, but domestic puter producers shift from domestically producedsemiconductors to imported ponents, then the effective rate of protection in the puter industry will(a) increase、(b) decrease(c) remain the same、(d) depend on whether puters are PCs or “Superputers、”(e) None of the above、Answer: A9、If the tariff on puters is not changed, but the government then adds hitherto nonexistent tariffs onimported semiconductor ponents, then the effective rate of protection in the puter industry will(a) increase、(b) decrease(c) remain the same、(d) depend on whether puters are PCs or “Superputers、”(e) None of the above、Answer: B10、If a small country imposes a tariff, then(a) the producers must suffer a loss、(b) the consumers must suffer a loss、(c) the government revenue must suffer a loss、(d) the demand curve must shift to the left、(e) None of the above、Answer: B11、If a large country imposes a tariff, then(a) the producers must suffer a loss、(b) the consumers must suffer a loss、(c) the government revenue must suffer a loss、(d) the demand curve must shift to the left、(e) None of the above、Answer: E12、The imposition of tariffs on imports results in deadweight (triangle) losses、 These are(a) production and consumption distortion effects、(b) redistribution effects、(c) revenue effects(d) efficiency effects、(e) None of the above、Answer: E13、Suppose the United States eliminates its tariff on ball bearings used in producing exports、 Ballbearing prices in the United States would be expected to(a) increase, and the foreign demand for U、S、 exports would increase、(b) decrease, and the foreign demand for U、S、 exports would increase、(c) increase, and the foreign demand for U、S、 exports would decrease、(d) decrease, and the foreign demand for U、S、 exports would decrease、(e) None of the above、Answer: C14、A specific tariff provides home producers more protection when(a) the home market buys cheaper products rather than expensive products、(b) it is applied to a modity with many grade variations、(c) the home demand for a good is elastic with respect to price changes、(d) it is levied on manufactured goods rather than primary products、(e) None of the above、Answer: A15、A lower tariff on imported steel would most likely benefit(a) foreign producers at the expense of domestic consumers、(b) domestic manufacturers of steel、(c) domestic consumers of steel、(d) workers in the steel industry、(e) None of the above、Answer: C16、When a government allows raw materials and other intermediate products to enter a country dutyfree, this generally results in a(an)(a) effective tariff rate less than the nominal tariff rate、(b) nominal tariff rate less than the effective tariff rate、(c) rise in both nominal and effective tariff rates、(d) fall in both nominal and effective tariff rates、(e) None of the above、Answer: B17、Of the many arguments in favor of tariffs, the one that has enjoyed significant economic justificationhas been the(a) cheap foreign labor argument、(b) infant industry argument、(c) even playing field argument、(d) balance of payments argument(e) domestic living standard argument、Answer: B18、The main redistribution effect of a tariff is the transfer of ine from(a) domestic producers to domestic buyers、(b) domestic buyers to domestic producers、(c) domestic producers to domestic government、(d) domestic government to domestic consumers、(e) None of the above、Answer: B19、The principle benefit of tariff protection goes to(a) domestic consumers of the good produced、(b) foreign consumers of the good produced、(c) domestic producers of the good produced、(d) foreign producers of the good produced、(e) None of the above、Answer: C20、As globalization tends to increase the proportion of imported inputs relative to domestically suppliedponents,(a) the nominal tariff automatically increases、(b) the rate of (effective) protection automatically decreases、(c) the nominal tariff automatically decreases、(d) the rate of (effective) protection automatically increases、(e) None of the above、Answer: D21、Which of the following policies permits a specified quantity of goods to be imported at one tariffrate and a higher tariff rate to imports above this quantity?(a) Import tariff(b) Voluntary exports restraint(c) Tariff quota(d) Ad valorum tariff(e) None of the above、Answer: C22、Should the home country be “large” relative t o its trade partners, its imposition of a tariff on importswould lead to an increase in domestic welfare if the terms of the trade rectangle exceed the sum of the(a) revenue effect plus redistribution effect、(b) protective effect plus revenue effect、(c) consumption effect plus redistribution effect、(d) protective distortion effect plus consumption distortion effect、(e) None of the above、Answer: D23、A problem encountered when implementing an “infant industry” tariff is that(a) domestic consumers will purchase the foreign good regardless of the tariff、(b) the industry may never “mature、”(c) most industries require tariff protection when they are mature、(d) the tariff may hurt the industry’s domestic sales、(e) None of the above、Answer: B24、Which of the following is a fixed percentage of the value of an imported product?(a) Specific tariff(b) Ad valorem tariff(c) Nominal tariff(d) Effective protection tariff(e) None of the above、Answer: B25、A tax of 20 cents per unit of imported garlic is an example of a(n)(a) specific tariff、(b) ad valorem tariff、(c) nominal tariff、(d) effective protection tariff、(e) None of the above、Answer: A26、A tax of 20 percent per unit of imported garlic is an example of a(n)(a) specific tariff、(b) ad valorem tariff、(c) nominal tariff、(d) effective protection tariff、(e) None of the above、Answer: B27、Which type of tariff is forbidden in the United States on Constitutional grounds?(a) Import tariff(b) Export tariff(c) Specific tariff(d) Prohibitive tariff(e) None of the above、Answer: B28、The deadweight loss of a tariff(a) is a social loss because it promotes inefficient use of national resources、(b) is a social loss because it reduces the revenue of the government、(c) is not a social loss because it merely redistributes revenue from one sector to another、(d) is not a social loss bacuase it is paid for by rich corporations、(e) None of the above、Answer: A29、Tariffs are not defended on the ground that they(a) improve the terms of trade of foreign nations、(b) protect jobs and reduce unemployment、(c) promote growth and development of young industries、(d) prevent overdependence of a country on only a few industries、(e) None of the above、Answer: A30、The most vocal political pressure for tariffs is generally made by(a) consumers lobbying for export tariffs、(b) consumers lobbying for import tariffs、(c) consumers lobbying for lower import tariffs、(d) producers lobbying for export tariffs、(e) producers lobbying for import tariffs、Answer: E31、A policy of tariff reduction in the puter industry is(a) in the interest of the United States as a whole and in the interest of puter producing regions ofthe country、(b) in the interest of United States as a whole but not in the interest of puter producing regions ofthe country、(c) not in the interest of the United States as a whole but in the interests of puter producing regionsof the country、(d) not in the interest of the United States as a whole and not in the interests of puter consumers、(e) None of the above、Answer: B32、The fact that industrialized countries levy very low or no tariff on raw materials and semi processedgoods(a) helps developing countries export manufactured products、(b) has no effect on developing country exports、(c) hurts developing country efforts to export manufactured goods、(d) hurts developing country efforts to export raw materials、(e) None of the above、Answer: C33、The Metzler Paradox(a) explains why the United States uses both specific and ad valorum tariffs、(b) explains why the United States uses many nonetariff barriers to imports、(c) refers to the fact that the United States exported laborintensive goods、(d) is not considered to be of practical application in the real world、(e) None of the above、Answer: D34、The Metzler Paradox(a) could theoretically happen when a small country levies a tariff、(b) refers to a situation when an Optimal Tariff hurts a country’s economic welfare、(c) refers to a situation when the imposition of a tariff lowers domestic prices、(d) refers to a situation when the imposition of a tariff helps foreign exporters、(e) None of the above、Answer: C35、An Optimal Tariff(a) could theoretically happen when a small country levies a tariff、(b) refers to a s ituation when a tariff hurts a country’s economic welfare、(c) refers to a situation when the imposition of a tariff lowers domestic prices、(d) refers to a situation when the imposition of a tariff helps foreign exporters、(e) None of the above、Answer: E36、An Optimal Tariff is considered unlikely to be observed in the real world because of(a) The Metzler Paradox、(b) it is practically impossible to define optimality in trade policy terms、(c) the likelihood of foreign repercussions、(d) real countries are considered to be “small” in the world trade context、(e) None of the above、Answer: C37、In an inflationary environment, then over time(a) A specific tariff will tend to raise more revenue than an ad valorum tariff、(b) An ad valorum tariff will tend to raise more revenue than a specific tariff(c) An optimum tariff will tend to raise more revenue than an escalating tariff(d) A tariff quota will tend to raise more revenue than a specific tariff、(e) None of the aboveAnswer: B38、The imposition of tariffs will help a nation attain which of the following goals?(a) Decreased domestic consumer prices(b) Increased domestic employment(c) Increased amount and variety of goods available for consumers(d) Increased petition between domestic and foreign producers(e) None of the aboveAnswer: E39、Tariff rates on products imported into the U、S、(a) have dropped substantially over the past 50 years、(b) were prohibited by the constitution(c) reached an all time high in 2002、(d) have risen steadily since 1920(e) None of the aboveAnswer: A40、What is a true statement concerning the imposition in the U、S、 of a tariff on steel?(a) It lowers the price of cheese domestically(b) It raises the price of cheese internationally(c) It raises revenue for the government(d) It will always result in retaliation from abroad(e) None of the aboveAnswer: C41、An important difference between tariffs and quotas is that tariffs(a) raise the price of the good(b) generate tax revenue for the government(c) stimulate international trade(d) help domestic producers(e) None of the aboveAnswer: BEssay Questions1、Economic theory in general, and trade theory in particular are replete with equivalencies、 Forexample, it is argued that for any specific tariff one can find an equivalent ad valorum tariff; and that for any quota one can calculate a tariff equivalent、 Discuss conditions or situations under which a specific and an ad valorum tariff are not equivalent、 Discuss conditions or situations when a tariff and a quota are not equivalent、Answer: E、g、, during a period of price inflation, an ad valorum tariff would bee increasingly more effective、 The government does not receive any of the quota revenues, unless theimport licenses are sold or auctioned、2、The Metzler Paradox is a special case of the optimum tariff concept、 Discuss this assertion、Would the optimum tariff tend to be a high one or a low one in the case where this paradox exists?What conditions would be needed in the international markets for a country’s exports for thisparadox to exist? Why do you suppose empirical support for the existence of this paradox has not been forthing to date?Answer: The Metzler Paradox describes an unlikely situation in which the imposition of a tariff not only improves a country’s welfare, but also improves that of its domestic consumers、 Ifthis paradox were present then the magnitude of the optimum tariff would tend to be large,since the welfare decreasing decrease in imports is not present in this case (the importsactually increase, as world prices drastically drop)、 The Metzler Paradox could occuronly if the foreign offer curves are inelastic、 It is not likely to be observed because tradeelasticities tend to be relatively large、 Also, were it to exist, its activation by a largecountry would tend to evoke foreign retaliation、3、Some argue that tariffs always hurt the imposing country’s economic welfare, and are typicallydesigned to shift resources from one sector to another, protected or preferred one, within aneconomy、 Find and discuss a counterexample to this argument、Answer: The optimum tariff is theoretically a firstbest trade policy、4、The effective rate of protection is a weighted average of nominal tariffs and tariffs on importedinputs、 It has been noted that in most industrialized countries, the nominal tariffs on raw materials or intermediate ponents or products are lower than on finalstage products meant for final markets、Why would countries design their tariff structures in this manner? Who tends to be helped, and who is harmed by this cascading tariff structure?Answer: The cascading tariff structure is probably the result of systematic lobbying on the part of manufacturing interests and lobbies to lower costs of production (in terms of importedinputs)、 The end result is in fact to create effective rates of protection for downstream, orfinal manufacturing processes that are often much higher than nominal tariffs on theseproducts、 An important group, which is hurt by this are exporters of raw materials andponents in developing countries、5、The two deadweight triangles are the Consumption distortion and Production distortion losses、 Itis easy to understand why the Consumption distortion constitutes a loss for society、 After all itraises the prices of goods to consumers, and even causes some consumers to drop out of the market altogether、 It seems paradoxical that the Production distortion is considered an equivalent burden on society、 After all, in this case, profits increase, and additional production (with its associated employment) es on line、 This would seem to be an offset rather than an addition to the burden or loss borne by society、 Explain why the Production distortion is indeed a loss to society, and what is wrong with the logic that leads to the apparent paradox、Answer: The Production Distortion represents an inefficient shift of society’s resources to producea good, which it could not sell profitably at world prices、 Since (with full employmentassumed) these resources were formerly used to produce export goods, which could peteprofitably, the net result is a loss in real ine to the country、6、It is argued that a tariff may help promote employment in a single industry, but is not likely to helpemployment in general、 Discuss、Answer: A general tariff on all imports is equivalent to a depreciation in the value of the country’s currency、 It would raise the prices of all imports, and have a considerable ine effect、This ine effect will have a negative effect on total consumption of the importpeting sector(as well as the exportables and nontradables)、 In addition, under conditions of a flexibleexchange rate regime (assuming the MarshalLerner Conditions hold) it will lower thesupply of the country’s currency in the foreign exchange market, and hence cause anappreciation of the currency、This will harm the country’s exports, and negatively affectthis sector’s employment、Quantitative/Graphing Problems1、In the Figure above, in theabsence of Trade how many Widgets does this country produce and consume?Answer: 602、In the absence of trade what is the country’s consumer plus producer surplus?Answer: $180, $1803、With free trade and no tariffs, what is the quantity of Widgets imported?Answer: 1004、With a specific tariff of $3 per unit, what is the quantity of Widget imports?Answer: 805、The loss of Consumer Surplus due to the tariff equalsAnswer: $2306、The lowest specific tariff which would be considered prohibitive isAnswer: $5第 11 页共 11 页。
国际经济学课程学习题集与参考答案
国际经济学习题集及参考答案一、填空、选择、判断题(每题1分):第一章:1、国际贸易理论以微观经济学原理为基础,讨论世界围的资源配置问题。
2、最常用国际贸易模型的结构形式为两个国家、两种产品(或部门)和两种要素。
3、在完竞争的假设前提下,封闭条件下的相对价格是国际贸易产生的基础。
4、国家间的供给、需求方面的差异是造成相对价格的根源。
5、贸易后,国际均衡价格由两国的供需共同决定,国际均衡价格处于两国封闭下的相对价格之间。
6、国际贸易利益包括两个部分:来自交换的利益和来自专业化的利益。
7、贸易理论主要围绕三个问题展开:国际贸易的格局、国际贸易的条件、国际贸易的收益。
第二章:1、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;嘉图的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
2、哈伯勒首先用机会成本概念来阐明比较优势论。
3、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
4、嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
5、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;劳动生产率的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
6、在嘉图模型中,生产可能性边界线方程是一个线性方程式,表示A、B两国的PPF曲线是一条直线段。
7、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
8、嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
9、机会成本概念表明:彼种选择的机会成本就构成此种选择的机会成本。
选择题:1、首先用机会成本理论来解释比较优势原理的学者是: C、A、嘉图B、罗布津斯基C、哈伯勒D、穆勒第三章:1、要素禀赋理论最初是由赫克歇尔和俄林提出的,后经萨缪尔森等人加工不断完善。
2、要素禀赋理论由H-O定理、要素价格均等化定理和罗伯津斯基定理、斯托伯-萨缪尔森定理等构成3、要素价格均等化理论指出国际贸易通过商品价格的均等化会导致要素价格的均等化,从而在世界围实现资源的最佳配置。
国际经济学第九版英文课后答案 第8单元
*CHAPTER 8 (Core Chapter)TRADE RESTRICTIONS: TARIFFSOUTLINE8.1 Introduction8.2 Partial Equilibrium Analysis of a TariffCase Study 8-1: Average Tariff on Non-Agricultural Products in Major Developed CountriesCase Study 8-2: Average Tariff on Non-Agricultural Products in Some MajorDeveloping Countries8.2a Partial Equilibrium Effects of a Tariff8.2b Effects of a Tariff on Producer and Consumer Surplus8.2c Costs and Benefits of a TariffCase Study 8-3: The Welfare Effects of Liberalizing Trade in Some U.S. Products Case Study 8-4: The Welfare Effects of Liberalizing Trade in Some EU Products 8.3 The Theory of Tariff Structure8.3a The Rate of Effective Protection8.3b Generalization and Evaluation of the Theory of Effective ProtectionCase Study 8-5: Rising Tariff Rates with Degree of Domestic ProcessingCase Study 8-6: Structure of Tariffs on Industrial Products in U.S., EU, Japan, and Canada8.4 General Equilibrium Analysis of a Tariff in a Small Country8.4a General Equilibrium Effects of a Tariff in a Small Country8.4b Illustration of the Effects of a Tariff in a Small Country8.4c The Stolper-Samuelson Theorem8.5 General Equilibrium Analysis of a Tariff in a Large Country8.5a General Equilibrium Effects of a Tariff in a Large Country8.5b Illustration of the Effects of a Tariff in a Large Country8.6 The Optimum Tariff8.6a The Meaning of the Concept and Retaliation8.6b Illustration of the Optimum Tariff and RetaliationAppendix: A8.1 Partial Equilibrium Effects of a Tariff in a Large NationA8.2 Derivation of the Formula for the Rate of Effective ProtectionA8.3 The Stolper-Samuelson Theorem GraphicallyA8.4 Exception to the Stolper-Samuelson Theorem - The MetzlerParadoxA8.5 Short-run Effect of a Tariff on Factors' IncomeA8.6 Measurement of the Optimum TariffKey TermsTrade or commercial policies Consumer surplusImport tariff Rent or producer surplusExport tariff Protection cost or deadweight loss of a tariff Ad valorem tariff Nominal tariffSpecific tariff Rate of effective protectionCompound tariff Domestic value addedConsumption effect of a tariff Prohibitive tariffProduction effect of a tariff Stolper-Samuelson theoremTrade effect of a tariff Metzler paradoxRevenue effect of a tariff Optimum tariffLecture Guide1.I would cover sections 1 and 2 and assign problems 1-2 in the first lecture. Themost difficult part of section 2 is the meaning and measurement of consumer and producer surplus. Since a clear understanding of the meaning and measurementof consumer and producer surplus is crucial in evaluating the effect of tariffs, Iwould explain t hese concepts very carefully.2.I would then cover section 3 and assign problems 3-6 in the second lecture. Thetheory of tariff structure is also very difficult and important, and so I would alsoexplain this concept very carefully. I found that the best way to explain it is byusing the simple example used in the text of the suit with and without importedinputs.3.The rest of the chapter can be skipped without loss of continuity by thoseInstructors who do not wish to cover the general equilibrium effects of tariffs. 4.For those Instructors who wish to cover the rest of the chapter, I would take upanother two lectures to do so. I would also assign and grade problems 8-14 tomake sure that students understand the material.5.In covering section 8.4, I would pay special attention to the explanation of Figure8-5 and to the Stolper-Samuelson theorem.6.In covering Section 8.6, please note that the optimum tariff can only be discussedintuitively without trade indifference curves (examined in Appendix A8.6). Answer to Problems1.a) Consumption is 70Y, production is 10Y and imports are 60Y (see Figure 1 onthe next page).b) Consumption is 60Y, production is 20Y and imports are 40Y (see Figure 1).c) The consumption effect is -10Y, the production effect is +10Y, the trade effectis -20Y and the revenue effect is $40 (see Figure 1).2. a) The consumer surplus is $245 without and $l80 with the tariff (see Figure 1).b)Of the increase in the revenue of producers with the tariff (as compared withtheir revenues under free trade), $l5 represents the increase in production costsand another $15 represents the increase in rent or producer surplus (see Figure1).c) The dollar value or the protection cost of the tariff is $l0 (see Figure 1).3. This will increase the rate of effective protection in the nation.4. a) g = 0.4 - (0.5)(0.4) = 0.4 - 0.2 = 0.2 = 40%1.0 - 0.5 0.5 0.55. a) g=60%b) g=80%c) g=0d) g=20%6. a) g=70%b) See the first paragraph of section 8.3b.7. See Figure 2.8.When Nation 1 (assumed to be a small nation) imposes an import tariff oncommodity Y, the real income of labor falls and that of capital rises.9.Py/Px rises for domestic producers and consumers. As production of Y (the K-intensive commodity) rises and that of X falls, the demand and income of K rises and that of L falls. Therefore, r rises and w falls.10.If Nation 1 were instead a large nation, then Nation 1's terms of trade rise and thereal income of L may also rise.India is more likely to restrict imports of K-intensive commodities in which India has a comparative disadvantage and this is likely to increase the return to capitaland reduce the return to labor according to the Stolper-Samuelson theorem.12. See Figure 3 on the previous page.13. See Figure 4.14. a) The volume of trade may shrink to zero (the origin of offer curves).App. 1. The more elastic S H and S F are, the lower is the free trade priceof the commodity and the lower is the increase in the domesticprice of the commodity as a result of the tariff.App. 2a. The supply curve of the nation for the commodity shifts upand to the left (as with the imposition of any tax); this does not affectthe consumption of the commodity with free trade, but it reducesdomestic production and increases imports of the commodity; italso increases the revenue effect and reduces producers' surplus.b)The imposition of a tariff on imported inputs going into the domestic productionof the commodity will have no effect on the size of the protection cost ordeadweight loss.App. 3. See Figure 5 (on the next page).App. 4. See Figure 6.App. 5. Real w will fall in terms of Y and rise in terms of X. On theother hand, r eal r will rise in terms of Y and fall in terms of X. Thiscan be seen by drawing a figure similar to Figure 8-10, but with theVMPLy curve shifting upward.App. 6a. See Figure 7.c) After Nation 1 has imposed an optimum tariff and Nation 2 has retaliatedwith an optimum tariff of its own, the approximate terms of trade for Nation1 is 0.8, while the approximate terms of trade of Nation2 is 1.25.d) Nation 1's welfare declines from the reduction in the volume and in the termsof trade. Although nation 2's terms of trade are higher than under free trade,the volume of trade has shrunk so much that nation 2's welfare is also likelyto be lower than under free trade.Multiple-choice Questions1. Which of the following statements is incorrect?a. An ad valorem tariff is expressed as a percentage of the value of the traded commodityb. a specific tariff is expressed as a fixed sum of the value of the traded commodity.c. export tariffs are prohibited by the U.S. Constitution*d. The U.S. uses exclusively the specific tariff2. A small nation is one:a. which does not affect world price by its tradingb. which faces an infinitely elastic world supply curve for its import commodityc. whose consumers will pay a price that exceeds the world price by the amount of the tariff*d. all of the above3. If a small nation increases the tariff on its import commodity, its:a. consumption of the commodity increasesb. production of the commodity decreasesc. imports of the commodity increase*d. none of the above4.The increase in producer surplus when a small nation imposes a tariff is measured bythe area:*a. to the left of the supply curve between the commodity price with and without the tariffb. under the supply curve between the quantity produced with and without the tariffc. under the demand curve between the commodity price with and without the tariffd. none of the above.5. If a small nation increases the tariff on its import commodity:*a. the rent of domestic producers of the commodity increasesb. the protection cost of the tariff decreasesc. the deadweight loss decreasesd. all of the above6.Which of the following statements is incorrect with respect to the rate of effectiveprotection?a. for given values of ai and ti, g is larger the greater is tb. for a given value of t and ti, g is larger the greater is a ic. g exceeds, is equal to or is smaller than t, as t i is smaller than, is equal to or is larger than t*d. when a i t i exceeds t, the rate of effective protection is positive7. With a i=50%, t i=0, and t=20%, g is:*a. 40%b. 20%c. 80%d. 08. The imposition of an import tariff by a small nation:*a. increases the relative price of the import commodity for domestic producers and consumersb. reduces the relative price of the import commodity for domestic producers and consumersc. increases the relative price of the import commodity for the nation as a wholed. any of the above is possible9. The imposition of an import tariff by a small nation:a. increases the nation's welfare*b. reduces the nation's welfarec. leaves the nation's welfare unchangedd. any of the above is possible10. According to the Stolper-Samuelson theorem, the imposition of a tariff by a nation:a. increases the real return of the nation's abundant factor*b. increases the real return of the nation's scarce factorc. reduces the real return of the nation's scarce factord. any of the above is possible11. The imposition of an import tariff by a nation results in:a. an increase in relative price of the nation's import commodityb. an increase in the nation's production of its importable commodityc. reduces the real return of the nation's abundant factor*d. all of the above12. The imposition of an import tariff by a nation can be represented by a rotation of the: *a. nation's offer curve away from the axis measuring the commodity of its comparative advantageb. the nation's offer curve toward the axis measuring the commodity of its comparative advantagec. the other nation's offer curve toward the axis measuring the commodity of its comparative advantaged. the other nation's offer curve away from the axis measuring the commodity of its comparative advantage13. The imposition of an import tariff by a large nation:a. increases the nation's terms of tradeb. reduces the volume of tradec. may increase or reduce the nation's welfare*d. all of the above14. The imposition of an optimum tariff by a large nation:a. improves its terms of tradeb. reduces the volume of tradec. increases the nation's welfare*d. all of the above15. The optimum tariff for a small nation is:a. 100%b. 50%*c. 0d. depends on elasticities。
国际经济学(克鲁格曼)课后习题答案1-8章
第一章练习与答案1.为什么说在决定生产和消费时,相对价格比绝对价格更重要?答案提示:当生产处于生产边界线上,资源则得到了充分利用,这时,要想增加某一产品的生产,必须降低另一产品的生产,也就是说,增加某一产品的生产是有机会机本(或社会成本)的。
生产可能性边界上任何一点都表示生产效率和充分就业得以实现,但究竟选择哪一点,则还要看两个商品的相对价格,即它们在市场上的交换比率。
相对价格等于机会成本时,生产点在生产可能性边界上的位置也就确定了。
所以,在决定生产和消费时,相对价格比绝对价格更重要。
2.仿效图1—6和图1—7,试推导出Y商品的国民供给曲线和国民需求曲线。
答案提示:3.在只有两种商品的情况下,当一个商品达到均衡时,另外一个商品是否也同时达到均衡?试解释原因。
答案提示:4.如果生产可能性边界是一条直线,试确定过剩供给(或需求)曲线。
答案提示:5.如果改用Y商品的过剩供给曲线(B国)和过剩需求曲线(A 国)来确定国际均衡价格,那么所得出的结果与图1—13中的结果是否一致?答案提示:国际均衡价格将依旧处于贸易前两国相对价格的中间某点。
6.说明贸易条件变化如何影响国际贸易利益在两国间的分配。
答案提示:一国出口产品价格的相对上升意味着此国可以用较少的出口换得较多的进口产品,有利于此国贸易利益的获得,不过,出口价格上升将不利于出口数量的增加,有损于出口国的贸易利益;与此类似,出口商品价格的下降有利于出口商品数量的增加,但是这意味着此国用较多的出口换得较少的进口产品。
对于进口国来讲,贸易条件变化对国际贸易利益的影响是相反的。
7.如果国际贸易发生在一个大国和一个小国之间,那么贸易后,国际相对价格更接近于哪一个国家在封闭下的相对价格水平?答案提示:贸易后,国际相对价格将更接近于大国在封闭下的相对价格水平。
8.根据上一题的答案,你认为哪个国家在国际贸易中福利改善程度更为明显些?答案提示:小国。
9*.为什么说两个部门要素使用比例的不同会导致生产可能性边界曲线向外凸?答案提示:第二章答案1.根据下面两个表中的数据,确定(1)贸易前的相对价格;(2)比较优势型态。
《国际经济学》第八章
Methods of import-license importdistribution
Import-license auction The government gets (almost all of) area c, in the form of auction revenues. Fixed favoritism In this case the importers lucky enough to receive the import licenses will get area c. Resource-using application With resource-using procedures, some or all of area c is turned into a loss to society by wasting productive resources.
CHAPTER 8
NONTARIFF BARRIERS TO IMPORTS AND PUSHING EXPORTS
Import quotas
The import quota specifies that only a certain physical amount of the good will be allowed into the country during the time period, usually one year.
VERs is a barrier in which the importing country government coerces the foreign exporting country to agree “voluntarily” to restrict its exports to this country. The export restraint usually requires that foreign exporting firms act like a cartel, restricting sales and raising prices.
(完整版)国际经济学课后习题答案
思路:中国的生产可能性曲线为2Y=300-X,大米的机会成本为1/2单位的钢铁,根据福利函数知每一条效用曲线上大米对钢铁的边际替代率为
(1)封闭经济中的福利最大化必在大米的边际替代率与机会成本相等处,即 ,或X=Y处,代入生产可能性曲线得X=Y=100,U0=100*1002=106
3.一个小国和一个大国发生贸易,哪一个国家的福利水平提高的幅度更大一些?画图说明。
思路:一般来说,小国福利水平提高的幅度更大一些。以大国向小国进口为例。从下图中可以看出虽然贸易后的价格均为PW,但是大国价格变动幅度小于小国,所以大国福利仅提高ABE,而小国福利提高A’B’E’。大国原来福利水平为OMEN,福利提高幅度为ABE/OMEN,而小国福利原来水平为O’M’E’N’,福利提高幅度为A’B’E’/O’M’E’N’,显然小国的福利水平提高幅度要比大国大。
(3)如果各国按照比较优势生产和出口,加拿大进口小麦出口计算机,中国进口计算机出口小麦。
加拿大进口一单位小麦需要出口1/22单位计算机,折合成劳动时间来算,生产一单位小麦本国要用3小时,但生产1/22单位计算机本国要用60/22小时劳动,所以加拿大进口一单位小麦相当于用60/22小时的劳动换回本国3小时生产的产品,节省了3-60/22=3/11小时的劳动时间。中国进口一单位计算机需要出口22单位小麦,相当于用22*4=88小时的劳动换回本国需用100小时生产的产品,节省了100-88=12小时的劳动时间。
生产者利润减少a=1/2*(1400+1600)*10000=1.5*107
社会福利增加b=(a+b)-a=2*106
6.假设A、B两国生产技术相同且在短期内不变:生产一单位衣服需要的资本为1,需要的劳动为3;生产一单位食品需要的资本为2,需要的劳动为2。A国拥有160单位劳动和100单位资本;B国拥有120单位劳动和80单位资本。则
克鲁格曼《国际经济学》(第8版)课后习题详解
克鲁格曼《国际经济学》(第8版)课后习题详解克鲁格曼《国际经济学》(第8版)课后习题详解第1章绪论本章不是考试的重点章节,建议读者对本章内容只作大致了解即可,本章没有相关的课后习题。
第1篇国际贸易理论第2章世界贸易概览一、概念题1>(发展中国家(developing countries)答:发展中国家是与发达国家相对的经济上比较落后的国家,又称“欠发达国家”或“落后国家”。
通常指第三世界国家,包括亚洲、非洲、拉丁美洲及其他地区的130多个国家。
衡量一国是否为发展中国家的具体标准有很多种,如经济学家刘易斯和世界银行均提出过界定发展中国家的标准。
一般而言,凡人均收入低于美国人均收入的五分之一的国家就被定义为发展中国家。
比较贫困和落后是发展中国家的共同特点。
2>(服务外包(service outsourcing)答:服务外包是指企业将其非核心的业务外包出去,利用外部最优秀的专业化团队来承接其业务,从而使其专注于核心业务,达到降低成本、提高效率、增强企业核心竞争力和对环境应变能力的一种管理模式。
20世纪90年代以来,随着信息技术的迅速发展,特别是互联网的普遍存在及广泛应用,服务外包得到蓬勃发展。
从美国到英国,从欧洲到亚洲,无论是中小企业还是跨国公司,都把自己有限的资源集中于公司的核心能力上而将其余业务交给外部专业公司,服务外包成为“发达经济中不断成长的现象”。
3>(引力模型(gravity model)答:丁伯根和波伊赫能的引力模型基本表达式为:其中,是国与国的贸易额,为常量,是国的国内生产总值,是国的国内生产总值,是两国的距离。
、、三个参数是用来拟合实际的经济数据。
引力模型方程式表明:其他条件不变的情况下,两国间的贸易规模与两国的GDP成正比,与两国间的距离成反比。
把整个世界贸易看成整体,可利用引力模型来预测任意两国之间的贸易规模。
另外,引力模型也可以用来明确国际贸易中的异常现象。
4>(第三世界(third world)答:第三世界这个名词原本是指法国大革命中的Third Estate(第三阶级)。
国际经济学习题与答案
第一章国际贸易理论的微观基础习题(一)选择题1.微观经济学研究的是单个社会的资源配置问题,而国际贸易理论研究的是()A 一国的资源配置问题B两国范围内的资源配置问题C地区范围内的资源配置问题D世界范围内的资源配置问题2. 一个人在作出选择时,()A如果边际收益非常大,他或她就不用考虑机会成本B进行最小机会成本的选择C比较该选择活动的边际成本和边际收益D只有当总利益非常大时,他或她才会选择使用其稀缺的资源3.机会成本()A由自己支付,而与他人无关B对劳务而言是零,因为劳务不会持续太久;对物品而言是正的,因为物品具有长久性C是为了进行某一选择而放弃的评价最高的选择D是为了进行某一选择放弃的所有选择4.如果两个人在商品的生产中具有不同的机会成本,那么他们能够从专业化与交换中()A都受损B一人受益,一人受损C既不受益,也不受损D都能够受益5. 沿着外凸的生产可能性边界线向下移动时,随着一种物品产量的增加,生产该物品的机会成本将()A保持不变B增加C减少D无法确定6 .一个国家(),能够在其生产可能性边界线之外的点上进行消费。
A没有任何时候B在充分就业的情况下C同其他国家进行贸易时D所有生产要素全部投入生产的时候7.供给曲线除了表示不同的价格水平所提供的商品数量外,还可以被认为是()A愿意并有能力支付的曲线B边际收益曲线C供给的最高价格曲线D供给的最低价格曲线8. 在封闭条件下,一国生产技术的改进降低了棉花的生产成本,那么棉花的价格(),棉花的生产数量()A上升;增加B上升;减少C下降;增加D下降;减少9 .对于两国贸易模型来说,国际均衡价格一定处于两国贸易前的()A最低相对价格水平之下B最高相对价格水平之上C相对价格水平之间D根据具体情况而定10 .经济学家作出这样的假设:作为一种目标,消费者总是在追求()A其效用最大化B其收入的最大化C其边际效用的最大化D以上选项均不对(二)简答题1如何理解狭义和广义的国际贸易,国际贸易理论的主要研究对象是什么?2既然国际贸易理论与微观经济学的基本原理存在着一致性,为什么还要区分国际贸易与国内贸易,将国际贸易作为一个独立的问题来研究呢?3用相对价格概念解释经济行为主体是如何摆脱“货币幻觉”的影响的。
国际经济学作业答案-第八章经典.doc
Chapter 8 The Instruments of Trade PolicyMultiple Choice Questions1. Specific tariffs are(a) import taxes stated in specific legal statutes.(b) import taxes calculated as a fixed charge for each unit of imported goods.(c) import taxes calculated as a fraction of the value of the imported goods.(d) the same as import quotas.(e) None of the above.Answer: B2. Ad valorem tariffs are(a) import taxes stated in ads in industry publications.(b) import taxes calculated as a fixed charge for each unit of imported goods.(c) import taxes calculated as a fraction of the value of the imported goods.(d) the same as import quotas(e) None of the above.Answer: C3. The excess supply curve of a product we (H) import from foreign countries (F) increases as(a) excess demand of country H increases.(b) excess demand of country F increases.(c) excess supply of country H increases.(d) excess supply of country F increases.(e) None of the above.Answer: D4. If a good is imported into (large) country H from country F, then the imposition of a tariffin country H(a) raises the price of the good in both countries (the “Law of One Price”).(b) raises the price in country H and cannot affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: EChapter 8 The Instruments of Trade Policy 93 5. If a good is imported into (small) country H from country F, then the imposition of a tariff Incountry H(a) raises the price of the good in both countries (the “Law of One Price”).(b) raises the price in country H and does not affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: B6. If a good is imported into (large) country H from country F, then the imposition of a tariff in countryH in the presence of the Metzler Paradox,(a) raises the price of the good in both countries (the “Law of One Price”).(b) raises the price in country H and cannot affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: C7. The effective rate of protection measures(a) the “true” ad valorum value of a tariff.(b) the quota equivalent value of a tariff.(c) the efficiency with which the tariff is collected at the customhouse.(d) the protection given by the tariff to domestic value added.(e) None of the above.Answer: D8. If the tariff on computers is not changed, but domestic computer producers shift from domesticallyproduced semiconductors to imported components, then the effective rate of protection in thecomputer industry will(a) increase.(b) decrease(c) remain the same.(d) depend on whether computers are PCs or “Supercomputers.”(e) None of the above.Answer: A9. If the tariff on computers is not changed, but the government then adds hitherto nonexistent tariffson imported semi-conductor components, then the effective rate of protection in the computerindustry will(a) increase.(b) decrease(c) remain the same.(d) depend on whether computers are PCs or “Supercomputers.”(e) None of the above.Answer: B10. If a small country imposes a tariff, then(a) the producers must suffer a loss.(b) the consumers must suffer a loss.(c) the government revenue must suffer a loss.(d) the demand curve must shift to the left.(e) None of the above.Answer: B11. If a large country imposes a tariff, then(a) the producers must suffer a loss.(b) the consumers must suffer a loss.(c) the government revenue must suffer a loss.(d) the demand curve must shift to the left.(e) None of the above.Answer: E12. The imposition of tariffs on imports results in deadweight (triangle) losses. These are(a) production and consumption distortion effects.(b) redistribution effects.(c) revenue effects(d) efficiency effects.(e) None of the above.Answer: E13. Suppose the United States eliminates its tariff on ball bearings used in producing exports. Ballbearing prices in the United States would be expected to(a) increase, and the foreign demand for U.S. exports would increase.(b) decrease, and the foreign demand for U.S. exports would increase.(c) increase, and the foreign demand for U.S. exports would decrease.(d) decrease, and the foreign demand for U.S. exports would decrease.(e) None of the above.Answer: C14. A specific tariff provides home producers more protection when(a) the home market buys cheaper products rather than expensive products.(b) it is applied to a commodity with many grade variations.(c) the home demand for a good is elastic with respect to price changes.(d) it is levied on manufactured goods rather than primary products.(e) None of the above.Answer: A精选Chapter 8 The Instruments of Trade Policy 9315. A lower tariff on imported steel would most likely benefit(a) foreign producers at the expense of domestic consumers.(b) domestic manufacturers of steel.(c) domestic consumers of steel.(d) workers in the steel industry.(e) None of the above.Answer: C16. When a government allows raw materials and other intermediate products to enter a country dutyfree, this generally results in a(an)(a) effective tariff rate less than the nominal tariff rate.(b) nominal tariff rate less than the effective tariff rate.(c) rise in both nominal and effective tariff rates.(d) fall in both nominal and effective tariff rates.(e) None of the above.Answer: B17. Of the many arguments in favor of tariffs, the one that has enjoyed significant economic justificationhas been the(a) cheap foreign labor argument.(b) infant industry argument.(c) even playing field argument.(d) balance of payments argument(e) domestic living standard argument.Answer: B18. The main redistribution effect of a tariff is the transfer of income from(a) domestic producers to domestic buyers.(b) domestic buyers to domestic producers.(c) domestic producers to domestic government.(d) domestic government to domestic consumers.(e) None of the above.Answer: B19. The principle benefit of tariff protection goes to(a) domestic consumers of the good produced.(b) foreign consumers of the good produced.(c) domestic producers of the good produced.(d) foreign producers of the good produced.(e) None of the above.Answer: C20. As globalization tends to increase the proportion of imported inputs relative to domestically suppliedcomponents,(a) the nominal tariff automatically increases.(b) the rate of (effective) protection automatically decreases.(c) the nominal tariff automatically decreases.(d) the rate of (effective) protection automatically increases.(e) None of the above.Answer: D21. Which of the following policies permits a specified quantity of goods to be imported at one tariffrate and a higher tariff rate to imports above this quantity?(a) Import tariff(b) Voluntary exports restraint(c) Tariff quota(d) Ad valorum tariff(e) None of the above.Answer: C22. Should the home country be “large” relative to its trade partners, its imposition of a tariff on importswould lead to an increase in domestic welfare if the terms of the trade rectangle exceed the sum of the(a) revenue effect plus redistribution effect.(b) protective effect plus revenue effect.(c) consumption effect plus redistribution effect.(d) protective distortion effect plus consumption distortion effect.(e) None of the above.Answer: D23. A problem encountered when implementing an “infant industry” tariff is that(a) domestic consumers will purchase the foreign good regardless of the tariff.(b) the industry may never “mature.”(c) most industries require tariff protection when they are mature.(d) the tariff may hurt the industry’s domestic sales.(e) None of the above.Answer: B24. Which of the following is a fixed percentage of the value of an imported product?(a) Specific tariff(b) Ad valorem tariff(c) Nominal tariff(d) Effective protection tariff(e) None of the above.Answer: B精选Chapter 8 The Instruments of Trade Policy 9325. A tax of 20 cents per unit of imported garlic is an example of a(n)(a) specific tariff.(b) ad valorem tariff.(c) nominal tariff.(d) effective protection tariff.(e) None of the above.Answer: A26. A tax of 20 percent per unit of imported garlic is an example of a(n)(a) specific tariff.(b) ad valorem tariff.(c) nominal tariff.(d) effective protection tariff.(e) None of the above.Answer: B27. Which type of tariff is forbidden in the United States on Constitutional grounds?(a) Import tariff(b) Export tariff(c) Specific tariff(d) Prohibitive tariff(e) None of the above.Answer: B28. The deadweight loss of a tariff(a) is a social loss because it promotes inefficient use of national resources.(b) is a social loss because it reduces the revenue of the government.(c) is not a social loss because it merely redistributes revenue from one sector to another.(d) is not a social loss bacuase it is paid for by rich corporations.(e) None of the above.Answer: A29. Tariffs are not defended on the ground that they(a) improve the terms of trade of foreign nations.(b) protect jobs and reduce unemployment.(c) promote growth and development of young industries.(d) prevent over-dependence of a country on only a few industries.(e) None of the above.Answer: A30. The most vocal political pressure for tariffs is generally made by(a) consumers lobbying for export tariffs.(b) consumers lobbying for import tariffs.(c) consumers lobbying for lower import tariffs.(d) producers lobbying for export tariffs.(e) producers lobbying for import tariffs.Answer: E31. A policy of tariff reduction in the computer industry is(a) in the interest of the United States as a whole and in the interest of computer producing regionsof the country.(b) in the interest of United States as a whole but not in the interest of computer producing regionsof the country.(c) not in the interest of the United States as a whole but in the interests of computer producingregions of the country.(d) not in the interest of the United States as a whole and not in the interests of computer consumers.(e) None of the above.Answer: B32. The fact that industrialized countries levy very low or no tariff on raw materials and semi processedgoods(a) helps developing countries export manufactured products.(b) has no effect on developing country exports.(c) hurts developing country efforts to export manufactured goods.(d) hurts developing country efforts to export raw materials.(e) None of the above.Answer: C33. The Metzler Paradox(a) explains why the United States uses both specific and ad valorum tariffs.(b) explains why the United States uses many none-tariff barriers to imports.(c) refers to the fact that the United States exported labor-intensive goods.(d) is not considered to be of practical application in the real world.(e) None of the above.Answer: D34. The Metzler Paradox(a) could theoretically happen when a small country levies a tariff.(b) refers to a situation when an Optimal Tariff hurts a country’s economic welfare.(c) refers to a situation when the imposition of a tariff lowers domestic prices.(d) refers to a situation when the imposition of a tariff helps foreign exporters.(e) None of the above.Answer: C精选Chapter 8 The Instruments of Trade Policy 9335. An Optimal Tariff(a) could theoretically happen when a small country levies a tariff.(b) refers to a situation when a tariff hurts a country’s economic welfare.(c) refers to a situation when the imposition of a tariff lowers domestic prices.(d) refers to a situation when the imposition of a tariff helps foreign exporters.(e) None of the above.Answer: E36. An Optimal Tariff is considered unlikely to be observed in the real world because of(a) The Metzler Paradox.(b) it is practically impossible to define optimality in trade policy terms.(c) the likelihood of foreign repercussions.(d) real countries are considered to be “small” in the world trade context.(e) None of the above.Answer: C37. In an inflationary environment, then over time(a) A specific tariff will tend to raise more revenue than an ad valorum tariff.(b) An ad valorum tariff will tend to raise more revenue than a specific tariff(c) An optimum tariff will tend to raise more revenue than an escalating tariff(d) A tariff quota will tend to raise more revenue than a specific tariff.(e) None of the aboveAnswer: B38. The imposition of tariffs will help a nation attain which of the following goals?(a) Decreased domestic consumer prices(b) Increased domestic employment(c) Increased amount and variety of goods available for consumers(d) Increased competition between domestic and foreign producers(e) None of the aboveAnswer: E39. Tariff rates on products imported into the U.S.(a) have dropped substantially over the past 50 years.(b) were prohibited by the constitution(c) reached an all time high in 2002.(d) have risen steadily since 1920(e) None of the aboveAnswer: A40. What is a true statement concerning the imposition in the U.S. of a tariff on steel?(a) It lowers the price of cheese domestically(b) It raises the price of cheese internationally(c) It raises revenue for the government(d) It will always result in retaliation from abroad(e) None of the aboveAnswer: C41. An important difference between tariffs and quotas is that tariffs(a) raise the price of the good(b) generate tax revenue for the government(c) stimulate international trade(d) help domestic producers(e) None of the aboveAnswer: BEssay Questions1. Economic theory in general, and trade theory in particular are replete with equivalencies. Forexample, it is argued that for any specific tariff one can find an equivalent ad valorum tariff; and that for any quota one can calculate a tariff equivalent. Discuss conditions or situations under which a specific and an ad valorum tariff are not equivalent. Discuss conditions or situations when a tariff and a quota are not equivalent.Answer: E.g., during a period of price inflation, an ad valorum tariff would become increasingly more effective. The government does not receive any of the quota revenues, unless theimport licenses are sold or auctioned.2. The Metzler Paradox is a special case of the optimum tariff concept. Discuss this assertion. Wouldthe optimum tariff tend to be a high one or a low one in the case where this paradox exists? What conditions would be needed in the international ma rkets for a country’s exports for this paradox to exist? Why do you suppose empirical support for the existence of this paradox has not beenforthcoming to date?Answer: The Metzler Paradox describes an unlikely situation in which the imposition of a tariff not only improves a country’s welfare, but also improves that of its domestic consumers. Ifthis paradox were present then the magnitude of the optimum tariff would tend to be large,since the welfare decreasing decrease in imports is not present in this case (the importsactually increase, as world prices drastically drop). The Metzler Paradox could occur onlyif the foreign offer curves are inelastic. It is not likely to be observed because tradeelasticities tend to be relatively large. Also, were it to exist, its activation by a largecountry would tend to evoke foreign retaliation.3. Some argue that tariffs always hurt the imposing country’s economic welfare, and are typicallydesigned to shift resources from one sector to another, protected or preferred one, within aneconomy. Find and discuss a counterexample to this argument.Answer: The optimum tariff is theoretically a first-best trade policy.精选Chapter 8 The Instruments of Trade Policy 93 4. The effective rate of protection is a weighted average of nominal tariffs and tariffs on importedinputs. It has been noted that in most industrialized countries, the nominal tariffs on raw materials or intermediate components or products are lower than on final-stage products meant for final markets.Why would countries design their tariff structures in this manner? Who tends to be helped, and who is harmed by this cascading tariff structure?Answer: The cascading tariff structure is probably the result of systematic lobbying on the part of manufacturing interests and lobbies to lower costs of production (in terms of importedinputs). The end result is in fact to create effective rates of protection for downstream, orfinal manufacturing processes that are often much higher than nominal tariffs on theseproducts. An important group, which is hurt by this are exporters of raw materials andcomponents in developing countries.5. The two deadweight triangles are the Consumption distortion and Production distortion losses. It iseasy to understand why the Consumption distortion constitutes a loss for society. After all it raises the prices of goods to consumers, and even causes some consumers to drop out of the marketaltogether. It seems paradoxical that the Production distortion is considered an equivalent burden on society. After all, in this case, profits increase, and additional production (with its associatedemployment) comes on line. This would seem to be an offset rather than an addition to the burden or loss borne by society. Explain why the Production distortion is indeed a loss to society, and what is wrong with the logic that leads to the apparent paradox.Answer: The Production Distortion represents an inefficient shift of society’s resources to producea good, which it could not sell profitably at world prices. Since (with full employmentassumed) these resources were formerly used to produce export goods, which couldcompete profitably, the net result is a loss in real income to the country.6. It is argued that a tariff may help promote employment in a single industry, but is not likely to helpemployment in general. Discuss.Answer: A general tariff on all imports is equivalent to a depreciation in the value of the country’s currency. It would raise the prices of all imports, and have a considerable income effect.This income effect will have a negative effect on total consumption of the import-competing sector (as well as the exportables and non-tradables). In addition, underconditions of a flexible exchange rate regime (assuming the Marshal-Lerner Conditionshold) it will lower the supply of the country’s currency in the foreign exchange market,and hence cause an appreciation of the currency. This will harm the country’s exports, andnegatively affect this sector’s employment.Quantitative/Graphing Problemsconsume?Answer: 602. In the absence of trade what is the country’s consumer plus producer surplus?Answer: $180, $1803. With free trade and no tariffs, what is the quantity of Widgets imported?Answer: 1004. With a specific tariff of $3 per unit, what is the quantity of Widget imports?Answer: 805. The loss of Consumer Surplus due to the tariff equalsAnswer: $2306. The lowest specific tariff which would be considered prohibitive isAnswer: $5精选。
国际经济学课后习题答案
第二章古典国际贸易理论1.根据重商主义的观点,一国必须保持贸易顺差。
在两国模型中是否可能?为什么?思路:在两国模型中一国的贸易顺差等于另一国的贸易逆差,不可能出现两国都顺差的情况,重商主义贸易顺差的目标必有一国无法实现。
2.在分析中国加入世界贸易组织(WTO)的利弊时,有人说“为了能够打开出口市场,我们不得不降低关税,进口一些外国产品。
这是我们不得不付出的代价”;请分析评论这种说法。
思路:这种说法实际是“重商主义”,认为出口有利,进口受损,实际上降低关税多进口本国不具有比较优势的产品,把资源用在更加有效率的产品生产中去再出口,能大大提高一国的福利水平,对一国来说反而是好事。
3.在古典贸易模型中,假设A国有120名劳动力,B国有50名劳动力,如果生产棉花的话,A国的人均产量是2吨,B国也是2吨;要是生产大米的话,A国的人均产量是10吨,B国则是16吨。
画出两国的生产可能性曲线并分析两国中哪一国拥有生产大米的绝对优势?哪一国拥有生产大米的比较优势?思路:B国由于每人能生产16吨大米,而A国每人仅生产10吨大米,所以B国具有生产大米的绝对优势。
从两国生产可能性曲线看出A国生产大米的机会成本为0.2,而B国为0.125,所以B国生产大米的机会成本或相对成本低于A国,B国生产大米具有比较优势。
的比较优势?哪个国势?(3)如果给定世界价格是1单位计算机交换22单位的小麦,加拿大参与贸易可以从每单位的进口中节省多少劳动时间?中国可以从每单位进口中节省多少劳动时间?如果给定世界价格是1单位计算机交换24单位的小麦,加拿大和中国分别可以从进口每单位的货物中节省多少劳动时间?(4)在自由贸易的情况下,各国应生产什么产品,数量是多少?整个世界的福利水平是提高还是降低了?试用图分析。
(以效用水平来衡量福利水平)思路:(1)中国生产计算机的机会成本为100/4=25,加拿大为60/3=20(2)因为加拿大生产计算机的机会成本比中国低,所以加拿大具有生产者计算机的比较优势,中国就具有生产小麦的比较优势。
克鲁格曼《国际经济学》(第8版)课后习题详解-第二章至第八章【圣才出品】
第1篇国际贸易理论第2章世界贸易概览一、概念题1.发展中国家(developing countries)答:发展中国家是与发达国家相对的经济上比较落后的国家,又称“欠发达国家”或“落后国家”。
通常指第三世界国家,包括亚洲、非洲、拉丁美洲及其他地区的130多个国家。
衡量一国是否为发展中国家的具体标准有很多种,如经济学家刘易斯和世界银行均提出过界定发展中国家的标准。
一般而言,凡人均收入低于美国人均收入的五分之一的国家就被定义为发展中国家。
比较贫困和落后是发展中国家的共同特点。
2.服务外包(service outsourcing)答:服务外包是指企业将其非核心的业务外包出去,利用外部最优秀的专业化团队来承接其业务,从而使其专注于核心业务,达到降低成本、提高效率、增强企业核心竞争力和对环境应变能力的一种管理模式。
20世纪90年代以来,随着信息技术的迅速发展,特别是互联网的普遍存在及广泛应用,服务外包得到蓬勃发展。
从美国到英国,从欧洲到亚洲,无论是中小企业还是跨国公司,都把自己有限的资源集中于公司的核心能力上而将其余业务交给外部专业公司,服务外包成为“发达经济中不断成长的现象”。
3.引力模型(gravity model)答:丁伯根和波伊赫能的引力模型基本表达式为:其中,T是i国与j国的贸易额,A为常量,i Y是i国的国内生产总值,j Y是j国的国ij内生产总值,D是两国的距离。
a、b、c三个参数是用来拟合实际的经济数据。
引力模型ij方程式表明:其他条件不变的情况下,两国间的贸易规模与两国的GDP成正比,与两国间的距离成反比。
把整个世界贸易看成整体,可利用引力模型来预测任意两国之间的贸易规模。
另外,引力模型也可以用来明确国际贸易中的异常现象。
4.第三世界(third world)答:第三世界这个名词原本是指法国大革命中的Third Estate(第三阶级)。
冷战时期,一些经济发展比较落后的国家为表示并不靠拢北约或华约任何一方,用“第三世界”一词界定自己。
国际经济学课后答案
第一章绪论1、列举出体现当前国际经济学问题的一些重要事件,他们为什么重要?他们都是怎么影响中国与欧、美、日的经济和政治关系的?当前的国际金融危机最能体现国际经济学问题,其深刻地影响了世界各国的金融、实体经济、政治等领域,也影响了各国之间的关系因此显得尤为重要;其对中国与欧、美、日的政治和经济关系的影响为:减少中国对上述国家的出口,影响中国外汇储备,贸易摩擦加剧,经济联系加强,因而也会导致中国与上述国家在政治上的对话与合作。
2、我们如何评价一国与他国之间的相互依赖程度?我们可以通过一国的对外贸易依存度来评价该国与他国之间的相互依赖程度,也可以通过其他方式来评价比如一国政府政策的溢出效应和回震效应以及对外贸易对国民生活水平的影响。
3、国际贸易理论及国际贸易政策研究的内容是什么?为什么说他们是国际经济学的微观方面?国际贸易理论分析贸易的基础和所得,国际贸易政策考察贸易限制和新保护主义的原因和效果。
国际贸易理论和政策是国际经济学的微观方面,因为他们把国家看作基本单位,并研究单个商品的(相对)价格。
4、什么是外汇交易市场及国际收支平衡表?调节国际收支平衡意味着什么?为什么说他们是国际经济学的宏观方面?什么是宏观开放经济学及国际金融?外汇交易市场描述一国货币与他国货币交换的框架,国际收支平衡表测度了一国与外部世界交易的总收入与总支出的情况。
调节国际收支平衡意味着调节一国与外部世界交易出现的不均衡(赤字或盈余);由于国际收支平衡表涉及总收入和总支出,调节政策影响国家收入水平和价格总指数,因而他们是国际经济学的宏观方面;外汇交易及国际收支平衡调节涉及总收入和总支出,调整政策影响国家收入水平和价格总指数,这些内容被称为宏观开放经济学或国际金融。
5、浏览报刊并做下列题目:(1)找出5条有关国际经济学的新闻(2)每条新闻对中国经济的重要性或影响(3)每条新闻对你个人有何影响A (1) 国际金融危机: 影响中国整体经济,降低出口、增加失业、经济减速等(2) 美国大选:影响中美未来经济政治关系(3) 石油价格持续下跌:影响中国的能源价格及相关产业(4) 可口可乐收购汇源被商务部否决:《反垄断法》的第一次实施,加强经济法治(5) 各国政府经济刺激方案:对中国经济产生外部性效应B 以上5条新闻对个人影响为:影响个人消费水平和就业前景第二章比较优势理论1、重商主义者的贸易观点如何?他们的国家财富概念与现在有何不同?重商主义者主张政府应当竭尽所能孤立出口,不主张甚至限制商品(尤其是奢侈类消费品)。
国际经济学的课后答案及选择
第一章绪论(一) 选择题1.国际经济学在研究资源配置时,是以(D.政府)作为基本的经济单位来划分的。
2.国际经济学研究的对象是(D 各国之间的经济活动和经济关系)3.从国际间经济资源流动的难易度看,(C人员)流动最容易(二)问答题1.试述国际经济学和国内经济学的关系。
答案提示:(1)联系:国际经济学与国内经济学研究的经济活动是相似的,面临的主要问题也是相似的;(2)最主要的区别是国际经济的民族国家性。
第二章古典的国际贸易理论(一)选择题本国生产A、B、C、D四种产品的单位劳动投入分别为1、2、4、15,外国生产这四种产品的单位劳动投入分别为12、18、24、30,根据李嘉图模型,本国在哪种产品上拥有最大比较优势?在哪种产品上拥有最大比较劣势?((c)A、D)答案:C(二)问答题1.亚当·斯密对国际贸易理论的主要贡献有哪些?答案提示:亚当·斯密的主要贡献是:(1)抨击了重商主义;(2)提出了绝对优势之一概念;(3)强调国际分工是使国民财富增加的最重要手段。
2.绝对优势理论和比较优势理论的区别是什么?答案提示:(1)绝对优势理论强调,国与国之间劳动生产率的绝对差异导致的技术水平的差异是产生国际贸易的主要原因;(2)比较优势理论强调,劳动生产率的相对差异导致的技术水平的差异是产生国际贸易的主要原因。
第二章问答题2.假设A、B两国的生产技术条件如下所示,那么两国还有进行贸易的动机吗?解释原因。
答案提示:从绝对优势来看,两国当中A国在两种产品中都有绝对优势;从比较优势来看,两国不存在相对技术差异。
所以,两国没有进行国际贸易的动机。
3.证明即使一国在某一商品上具有绝对优势,也未必具有比较优势。
答案提示:如果ax>bx,则称A国在X生产上具有绝对优势;如果ax/ay>bx/by,则称A国在X生产上具有比较优势。
当 ay=by或者ay<by的时候,由ax>bx可以推出ax/ay>bx/by,但是,当ay>by的时候,ax>bx不能保证。
国际经济学课程学习题集与参考答案
国际经济学习题集及参考答案一、填空、选择、判断题(每题1分):第一章:1、国际贸易理论以微观经济学原理为基础,讨论世界围的资源配置问题。
2、最常用国际贸易模型的结构形式为两个国家、两种产品(或部门)和两种要素。
3、在完竞争的假设前提下,封闭条件下的相对价格是国际贸易产生的基础。
4、国家间的供给、需求方面的差异是造成相对价格的根源。
5、贸易后,国际均衡价格由两国的供需共同决定,国际均衡价格处于两国封闭下的相对价格之间。
6、国际贸易利益包括两个部分:来自交换的利益和来自专业化的利益。
7、贸易理论主要围绕三个问题展开:国际贸易的格局、国际贸易的条件、国际贸易的收益。
第二章:1、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;嘉图的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
2、哈伯勒首先用机会成本概念来阐明比较优势论。
3、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
4、嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
5、斯密的绝对优势论认为国际贸易的基础是各国之间劳动生产率的绝对差别;劳动生产率的比较优势论认为国际贸易的基础是各国之间劳动生产率的相对差别。
6、在嘉图模型中,生产可能性边界线方程是一个线性方程式,表示A、B两国的PPF曲线是一条直线段。
7、重商主义者提倡的国家经济政策有:限制进口和鼓励出口,采取奖金、退税、协定和殖民地贸易等措施鼓励出口。
8、嘉图认为在国际贸易中起决定作用的不是绝对成本,而是相对成本。
9、机会成本概念表明:彼种选择的机会成本就构成此种选择的机会成本。
选择题:1、首先用机会成本理论来解释比较优势原理的学者是: C、A、嘉图B、罗布津斯基C、哈伯勒D、穆勒第三章:1、要素禀赋理论最初是由赫克歇尔和俄林提出的,后经萨缪尔森等人加工不断完善。
2、要素禀赋理论由H-O定理、要素价格均等化定理和罗伯津斯基定理、斯托伯-萨缪尔森定理等构成3、要素价格均等化理论指出国际贸易通过商品价格的均等化会导致要素价格的均等化,从而在世界围实现资源的最佳配置。
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C h a p t e r8T h e I n s t r u m e n t s o f T r a d e P o l i c yMultiple Choice Questions1. Specific tariffs are(a) import taxes stated in specific legal statutes.(b) import taxes calculated as a fixed charge for each unit of imported goods.(c) import taxes calculated as a fraction of the value of the imported goods.(d) the same as import quotas.(e) None of the above.Answer: B2. Ad valorem tariffs are(a) import taxes stated in ads in industry publications.(b) import taxes calculated as a fixed charge for each unit of imported goods.(c) import taxes calculated as a fraction of the value of the imported goods.(d) the same as import quotas(e) None of the above.Answer: C3. The excess supply curve of a product we (H) import from foreign countries (F) increases as(a) excess demand of country H increases.(b) excess demand of country F increases.(c) excess supply of country H increases.(d) excess supply of country F increases.(e) None of the above.Answer: D4. If a good is imported into (large) country H from country F, then the imposition of a tariffin country H(a) raises the price of the good in both countries (the “Law of One Price”).(b) raises the price in country H and cannot affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: E5. If a good is imported into (small) country H from country F, then the imposition of a tariff Incountry H(a) raises the price of the good in both countries (the “Law of One Price”).(b) raises the price in country H and does not affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: B6. If a good is imported into (large) country H from country F, then the imposition of a tariff incountry H in the presence of the Metzler Paradox,(a) raises the price of the g ood in both countries (the “Law of One Price”).(b) raises the price in country H and cannot affect its price in country F.(c) lowers the price of the good in both countries.(d) lowers the price of the good in H and could raise it in F.(e) raises the price of the good in H and lowers it in F.Answer: C7. The effective rate of protection measures(a) the “true” ad valorum value of a tariff.(b) the quota equivalent value of a tariff.(c) the efficiency with which the tariff is collected at the customhouse.(d) the protection given by the tariff to domestic value added.(e) None of the above.Answer: D8. If the tariff on computers is not changed, but domestic computer producers shift fromdomestically produced semiconductors to imported components, then the effective rate of protection in the computer industry will(a) increase.(b) decrease(c) remain the same.(d) depend on whether computers are PCs or “Supercomputers.”(e) None of the above.Answer: A9. If the tariff on computers is not changed, but the government then adds hitherto nonexistenttariffs on imported semi-conductor components, then the effective rate of protection in the computer industry will(a) increase.(b) decrease(c) remain the same.(d) depend on whether computers ar e PCs or “Supercomputers.”(e) None of the above.Answer: B10. If a small country imposes a tariff, then(a) the producers must suffer a loss.(b) the consumers must suffer a loss.(c) the government revenue must suffer a loss.(d) the demand curve must shift to the left.(e) None of the above.Answer: B11. If a large country imposes a tariff, then(a) the producers must suffer a loss.(b) the consumers must suffer a loss.(c) the government revenue must suffer a loss.(d) the demand curve must shift to the left.(e) None of the above.Answer: E12. The imposition of tariffs on imports results in deadweight (triangle) losses. These are(a) production and consumption distortion effects.(b) redistribution effects.(c) revenue effects(d) efficiency effects.(e) None of the above.Answer: E13. Suppose the United States eliminates its tariff on ball bearings used in producing exports. Ballbearing prices in the United States would be expected to(a) increase, and the foreign demand for U.S. exports would increase.(b) decrease, and the foreign demand for U.S. exports would increase.(c) increase, and the foreign demand for U.S. exports would decrease.(d) decrease, and the foreign demand for U.S. exports would decrease.(e) None of the above.Answer: C14. A specific tariff provides home producers more protection when(a) the home market buys cheaper products rather than expensive products.(b) it is applied to a commodity with many grade variations.(c) the home demand for a good is elastic with respect to price changes.(d) it is levied on manufactured goods rather than primary products.(e) None of the above.Answer: A15. A lower tariff on imported steel would most likely benefit(a) foreign producers at the expense of domestic consumers.(b) domestic manufacturers of steel.(c) domestic consumers of steel.(d) workers in the steel industry.(e) None of the above.Answer: C16. When a government allows raw materials and other intermediate products to enter a country dutyfree, this generally results in a(an)(a) effective tariff rate less than the nominal tariff rate.(b) nominal tariff rate less than the effective tariff rate.(c) rise in both nominal and effective tariff rates.(d) fall in both nominal and effective tariff rates.(e) None of the above.Answer: B17. Of the many arguments in favor of tariffs, the one that has enjoyed significant economicjustification has been the(a) cheap foreign labor argument.(b) infant industry argument.(c) even playing field argument.(d) balance of payments argument(e) domestic living standard argument.Answer: B18. The main redistribution effect of a tariff is the transfer of income from(a) domestic producers to domestic buyers.(b) domestic buyers to domestic producers.(c) domestic producers to domestic government.(d) domestic government to domestic consumers.(e) None of the above.Answer: B19. The principle benefit of tariff protection goes to(a) domestic consumers of the good produced.(b) foreign consumers of the good produced.(c) domestic producers of the good produced.(d) foreign producers of the good produced.(e) None of the above.Answer: C20. As globalization tends to increase the proportion of imported inputs relative to domesticallysupplied components,(a) the nominal tariff automatically increases.(b) the rate of (effective) protection automatically decreases.(c) the nominal tariff automatically decreases.(d) the rate of (effective) protection automatically increases.(e) None of the above.Answer: D21. Which of the following policies permits a specified quantity of goods to be imported at one tariffrate and a higher tariff rate to imports above this quantity?(a) Import tariff(b) Voluntary exports restraint(c) Tariff quota(d) Ad valorum tariff(e) None of the above.Answer: C22. Should the home country be “large” relative to its trade partners, its imposition of a tariff onimports would lead to an increase in domestic welfare if the terms of the trade rectangle exceed the sum of the(a) revenue effect plus redistribution effect.(b) protective effect plus revenue effect.(c) consumption effect plus redistribution effect.(d) protective distortion effect plus consumption distortion effect.(e) None of the above.Answer: D23. A problem encountered when implementing an “infant industry” tariff is that(a) domestic consumers will purchase the foreign good regardless of the tariff.(b) the industry may never “mature.”(c) most industries require tariff protection when they are mature.(d) the tariff may hurt the industry’s dom estic sales.(e) None of the above.Answer: B24. Which of the following is a fixed percentage of the value of an imported product?(a) Specific tariff(b) Ad valorem tariff(c) Nominal tariff(d) Effective protection tariff(e) None of the above.Answer: B25. A tax of 20 cents per unit of imported garlic is an example of a(n)(a) specific tariff.(b) ad valorem tariff.(c) nominal tariff.(d) effective protection tariff.(e) None of the above.Answer: A26. A tax of 20 percent per unit of imported garlic is an example of a(n)(a) specific tariff.(b) ad valorem tariff.(c) nominal tariff.(d) effective protection tariff.(e) None of the above.Answer: B27. Which type of tariff is forbidden in the United States on Constitutional grounds?(a) Import tariff(b) Export tariff(c) Specific tariff(d) Prohibitive tariff(e) None of the above.Answer: B28. The deadweight loss of a tariff(a) is a social loss because it promotes inefficient use of national resources.(b) is a social loss because it reduces the revenue of the government.(c) is not a social loss because it merely redistributes revenue from one sector to another.(d) is not a social loss bacuase it is paid for by rich corporations.(e) None of the above.Answer: A29. Tariffs are not defended on the ground that they(a) improve the terms of trade of foreign nations.(b) protect jobs and reduce unemployment.(c) promote growth and development of young industries.(d) prevent over-dependence of a country on only a few industries.(e) None of the above.Answer: A30. The most vocal political pressure for tariffs is generally made by(a) consumers lobbying for export tariffs.(b) consumers lobbying for import tariffs.(c) consumers lobbying for lower import tariffs.(d) producers lobbying for export tariffs.(e) producers lobbying for import tariffs.Answer: E31. A policy of tariff reduction in the computer industry is(a) in the interest of the United States as a whole and in the interest of computer producingregions of the country.(b) in the interest of United States as a whole but not in the interest of computer producingregions of the country.(c) not in the interest of the United States as a whole but in the interests of computer producingregions of the country.(d) not in the interest of the United States as a whole and not in the interests of computerconsumers.(e) None of the above.Answer: B32. The fact that industrialized countries levy very low or no tariff on raw materials and semiprocessed goods(a) helps developing countries export manufactured products.(b) has no effect on developing country exports.(c) hurts developing country efforts to export manufactured goods.(d) hurts developing country efforts to export raw materials.(e) None of the above.Answer: C33. The Metzler Paradox(a) explains why the United States uses both specific and ad valorum tariffs.(b) explains why the United States uses many none-tariff barriers to imports.(c) refers to the fact that the United States exported labor-intensive goods.(d) is not considered to be of practical application in the real world.(e) None of the above.Answer: D34. The Metzler Paradox(a) could theoretically happen when a small country levies a tariff.(b) refers to a situation when an Optimal Tariff hurts a country’s econo mic welfare.(c) refers to a situation when the imposition of a tariff lowers domestic prices.(d) refers to a situation when the imposition of a tariff helps foreign exporters.(e) None of the above.Answer: C35. An Optimal Tariff(a) could theoretically happen when a small country levies a tariff.(b) refers to a situation when a tariff hurts a country’s economic welfare.(c) refers to a situation when the imposition of a tariff lowers domestic prices.(d) refers to a situation when the imposition of a tariff helps foreign exporters.(e) None of the above.Answer: E36. An Optimal Tariff is considered unlikely to be observed in the real world because of(a) The Metzler Paradox.(b) it is practically impossible to define optimality in trade policy terms.(c) the likelihood of foreign repercussions.(d) real countries are considered to be “small” in the world trade context.(e) None of the above.Answer: C37. In an inflationary environment, then over time(a) A specific tariff will tend to raise more revenue than an ad valorum tariff.(b) An ad valorum tariff will tend to raise more revenue than a specific tariff(c) An optimum tariff will tend to raise more revenue than an escalating tariff(d) A tariff quota will tend to raise more revenue than a specific tariff.(e) None of the aboveAnswer: B38. The imposition of tariffs will help a nation attain which of the following goals?(a) Decreased domestic consumer prices(b) Increased domestic employment(c) Increased amount and variety of goods available for consumers(d) Increased competition between domestic and foreign producers(e) None of the aboveAnswer: E39. Tariff rates on products imported into the U.S.(a) have dropped substantially over the past 50 years.(b) were prohibited by the constitution(c) reached an all time high in 2002.(d) have risen steadily since 1920(e) None of the aboveAnswer: A40. What is a true statement concerning the imposition in the U.S. of a tariff on steel?(a) It lowers the price of cheese domestically(b) It raises the price of cheese internationally(c) It raises revenue for the government(d) It will always result in retaliation from abroad(e) None of the aboveAnswer: C41. An important difference between tariffs and quotas is that tariffs(a) raise the price of the good(b) generate tax revenue for the government(c) stimulate international trade(d) help domestic producers(e) None of the aboveAnswer: BEssay Questions1. Economic theory in general, and trade theory in particular are replete with equivalencies. Forexample, it is argued that for any specific tariff one can find an equivalent ad valorum tariff; and that for any quota one can calculate a tariff equivalent. Discuss conditions or situations underwhich a specific and an ad valorum tariff are not equivalent. Discuss conditions or situationswhen a tariff and a quota are not equivalent.Answer: E.g., during a period of price inflation, an ad valorum tariff would become increasingly more effective. The government does not receive any of the quota revenues, unless theimport licenses are sold or auctioned.2. The Metzler Paradox is a special case of the optimum tariff concept. Discuss this assertion.Would the optimum tariff tend to be a high one or a low one in the case where this paradox exists?What conditions would be needed in the international markets for a country’s exports for thisparadox to exist? Why do you suppose empirical support for the existence of this paradox has not been forthcoming to date?Answer: The Metzler Paradox describes an unlikely situation in which the imposition of a tariff not only improves a country’s welfare, but also improves that of its domesticconsumers. If this paradox were present then the magnitude of the optimum tariff wouldtend to be large, since the welfare decreasing decrease in imports is not present in thiscase (the imports actually increase, as world prices drastically drop). The MetzlerParadox could occur only if the foreign offer curves are inelastic. It is not likely to beobserved because trade elasticities tend to be relatively large. Also, were it to exist, itsactivation by a large country would tend to evoke foreign retaliation.3. Some argue that tariffs always hurt the imposing country’s economic welfare, and are typicallydesigned to shift resources from one sector to another, protected or preferred one, within aneconomy. Find and discuss a counterexample to this argument.Answer: The optimum tariff is theoretically a first-best trade policy.4. The effective rate of protection is a weighted average of nominal tariffs and tariffs on importedinputs. It has been noted that in most industrialized countries, the nominal tariffs on raw materials or intermediate components or products are lower than on final-stage products meant for final markets. Why would countries design their tariff structures in this manner? Who tends to behelped, and who is harmed by this cascading tariff structure?Answer: The cascading tariff structure is probably the result of systematic lobbying on the part of manufacturing interests and lobbies to lower costs of production (in terms ofimported inputs). The end result is in fact to create effective rates of protection fordownstream, or final manufacturing processes that are often much higher than nominaltariffs on these products. An important group, which is hurt by this are exporters of rawmaterials and components in developing countries.5. The two deadweight triangles are the Consumption distortion and Production distortion losses. Itis easy to understand why the Consumption distortion constitutes a loss for society. After all it raises the prices of goods to consumers, and even causes some consumers to drop out of themarket altogether. It seems paradoxical that the Production distortion is considered an equivalent burden on society. After all, in this case, profits increase, and additional production (with itsassociated employment) comes on line. This would seem to be an offset rather than an addition to the burden or loss borne by society. Explain why the Production distortion is indeed a loss tosociety, and what is wrong with the logic that leads to the apparent paradox.Answer: The Production Distortion represents an inefficient shift of society’s resources to produce a good, which it could not sell profitably at world prices. Since (with fullemployment assumed) these resources were formerly used to produce export goods,which could compete profitably, the net result is a loss in real income to the country. 6. It is argued that a tariff may help promote employment in a single industry, but is not likely tohelp employment in general. Discuss.Answer: A general tariff on all imports is equivalent to a depreciation in the value of the country’s currency. It would raise the prices of all imports, and have a considerableincome effect. This income effect will have a negative effect on total consumption ofthe import-competing sector (as well as the exportables and non-tradables). In addition,under conditions of a flexible exchange rate regime (assuming the Marshal-LernerConditions hold) it will lower the supply of the country’s currency in the foreignexchange market, and hence cause an appreciation of the currency. This will harm thecountry’s exports, and negatively affect this sector’s employment.Quantitative/Graphing Problems1. In the Figure above, in the absence of Trade how many Widgets does this country produce andconsume?Answer: 602. In the absence of trade what is the country’s consumer plus producer surplus?Answer: $180, $1803. With free trade and no tariffs, what is the quantity of Widgets imported?Answer: 1004. With a specific tariff of $3 per unit, what is the quantity of Widget imports?Answer: 805. The loss of Consumer Surplus due to the tariff equalsAnswer: $2306. The lowest specific tariff which would be considered prohibitive isAnswer: $5。