微观经济学课件英文版 En-micro01
微观经济学Microeconomics-精品课件
• 参考教材 ：黄亚钧 郁义鸿主编 《微观经 济学》，高等教育出版社，2003年。
• 参考书目： • [美]H.范里安著 《微观经济学：现代观
点》，上海三联书店 上海人民出版社， 1994年； • [美]平狄克 鲁宾费尔德 著 《微观经济 学》，中国人民大学出版社，1997年。 • 黎诣远 《微观经济分析》，清华大学出 版社
13、He who seize the right moment, is the right man.谁把握机遇，谁就心想事成。21.7.1421.7.1 401:18:2501:18 :25July 14, 2021
•
14、谁要是自己还没有发展培养和教 育好， 他就不 能发展 培养和 教育别 人。202 1年7月 14日星 期三上 午1时1 8分25 秒01:18:2521.nomic Man 经济人
• 如果说，稀缺是社会存在的经济概括， 那么，经济人这个概念就是对社会意 识的经济学概括。
• 经济学并不研究稀缺本身，而是研究 在稀缺条件下人的行为，也就是研究 经济人的行为。
© copyrights by Changde Zheng 2004. Economic college，Southwest University For Nationalities.
ii) Scarcity means that to have more of some things there must be less of others (Opportunity Cost): Production Possibilities Frontier
iii) Scarcity implies choice
•
15、一年之计，莫如树谷；十年之计 ，莫如 树木； 终身之 计，莫 如树人 。2021 年7月上 午1时1 8分21. 7.1401:18July 14, 2021
《微观经济学》PPT课件
〔2〕比较静态分析法：只分析 始点和终点的经济变量的 状 况
〔3〕动态分析法 引入时间因 素,分析某一时期内经济变量 的过程状况 .
三、经济模型
1、 经 济 模 型 〔economic
model>：用来表述经济
P price
变量之间的依存关系的理
李嘉图发展了亚当、斯密的思想,建立起了以劳动价 值论为基础,以分配论为中心的理论体系.并提出了 比较成本学说.他认为：每个国家都可以通过生产具 有相对优势的商品,通过国际贸易获得利益.
３、萨伊<Say>〔法〕 〔1767-1832〕
让·巴蒂斯特·萨伊
代表作《政治经济学概论》1803年
他认为：供给创造需求,储蓄必然转化 为投资,生产就是消费,供给就是需求, 生产过剩的危机是不会发生的.一个 国家生产者越多,产品越多,企业越多, 贸易越多社会财富越多.主张发展生 产.
2、按研究经济问题判断标准的不同可分为：
• 实证经济学<positive economics>：用事 实说明经济现象的现状如何？回答是什么 〔What is>如：某一时期的经济增长率为 8%,失业率是6%.
•规范经济学<normative economics>：以一 定的判断标准为出发点,力求回答应该是 什么〔What ought to be>.如：要实现8%的 年经济增长速度,政府应采取什么样的财 政政策和货币政策.某国的收入分配是不 是公平.
亚当、斯密的《国富论》
在《国富论》的序论中的第一句话就是： "被看作政治家或立法家的一门政治经济学 提出两个目标： 第一,给人民提供充足的收入或生计, 第二,给国家或社会提供充足的收入. 总之,其目的在于富国裕民".
Microeconomics 2011 Chapter 1 微观经济 教学课件
Two Big Economic Questions
You make choices that are in your self-interest—choices that you think are best for you.
Choices that are best for society as a whole are said to be in the social interest.
What?
Agriculture accounts for less than 1 percent of total U.S. production, manufactured goods for 20 percent, and services for 80 percent.
In China, agriculture accounts for 10 percent of total production, manufactured goods for 50 percent, and services for 40 percent.
Two Big Economic Questions
What? What goods and services get produced and in what quantities? How? How are goods and services produced? For Whom? For whom are the various goods and services produced?
© 2010 Pearson Addison-Wesley
Two Big Economic Questions
迈克尔版本微观经济第一章ppt (英文版)
Two Big Economic Questions
Figure 1.1 shows the trends in what the Canadian economy has produced over the past 60 years. It shows the decline of agriculture, mining, construction, and manufacturing, and the expansion of services.
Chapter 1
What is Economics?
© 2010 Pearson Education Canada
In this lecture, we will learn:
• What is Economics all about? • What are the two major branches of economics?
Choices that individuals, businesses and the entire society make in order to allocate their limited resources, determine their economic future and their economic well-being.
© 2010 Pearson Education Canada
The Economic Way of Thinking
Choosing at the Margin
People make choices at the margin, which means that they evaluate the consequences of making incremental changes in the use of their resources. The benefit from pursuing an incremental increase in an activity is its marginal benefit. The opportunity cost of pursuing an incremental increase in an activity is its marginal cost.
微观经济学microeconomics Chapter1PPT课件
• Whether to go to college or to work? • Whether to study or go out on a date? • Whether to go to class or sleep in?
Principle #1: People Face Trade-offs.
• To get one thing, we usually have to give up another thing.
• Bicycle v. butter • Food v. clothing • Leisure time v. work • Efficiency v. equity
© 22000171ThCoemnsgoangSeoSutohu-Wthe-sWterenstern
TEN PRINCIPLES OF ECONOMICS
Economics is the study of how society manages its scarce resources.
© 22000171ThCoemnsgoangSeoSutohu-Wthe-sWterenstern
© 20©1120C0e7nTghaogmesoSnoSuotuht-hW-Weesstteernn
Principle #2: The Cost of Something Is What You Give Up to Get It. • Decisions require comparing costs and benefits
• Efficiency means society gets the most that it can from its scarce resources.
平狄克微观经济学课件英文01精品文档19页
Chapter 1: Preliminaries
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall • Microeconomics • Pindyck/Rubinfeld, 7e.
4 of 18
1.1 THE THEMES OF MICROECONOMICS
Theories and Models
In economics, explanation and prediction are based on theories. Theories are developed to explain observed phenomena in terms of a set of basic rules and assumptions.
Workers Workers also face constraints and make trade-offs. First, people must decide whether and when to enter the workforce. Second, workers face trade-offs in their choice of employment. Finally, workers must sometimes decide how many hours per week they wish to work, thereby trading off labor for leisure.
In a market economy, prices are determined by the interactions of consumers, workers, and firms. These interactions occur in markets—collections of buyers and sellers that together determine the price of a good.
微观经济学英文版PPT课件
10
2.2 the definition of microeconomics
The starting point of economics searching The definition of Microeconomics People how to make decision Why need to bargain Why need to build market economics
Economics is a study, learning selection of scarce resources with different uses; The goal is effective allocation of scarce resources to produce goods and services, and in the present or future, let them reasonable allocated to social members or group for consumption.
8
Production possibilities curve
PPC is a graph that shows the combinations of output that the economy can possibly produce given the available factors of production and the available production technology.
微观经济学英文版
Chapter 1: The Fundamentals of Economics（A. Introduction）
1.1 Scarcity and Efficiency
What is economics ?
Economics is the study of how societies use scarce resources to produce valuable commodities and distribute them among different people.
Microeconomics
Yan YAN
Chapter 1: The Fundamentals of Economics（A. Introduction）
You want to buy a clock in the grocery near the campus. The price is $20. A friend tells you that it is $10 in the supermarket in downtown. Would you buy the clock in the supermarket？
1) plot the straight-line relationship between all combinations of X and Y on a blank piece of graph paper.
2)let us say that you absolutely need 6 hours of leisure per day, no more, no less. On the graph, mark the point that corresponds to 6hours of leisure.
微观经济学：现代观点原版PPT(英文)第一章
Market Equilibrium
p
pe 100 QD,QS
Market Equilibrium
p
Higher incomes cause higher willingness-to-pay
pe 100 QD,QS
Market Equilibrium
p
Higher incomes cause higher willingness-to-pay, higher market price, and the same quantity traded.
pe 100 QD,QS
Competitive Market Equilibrium
p
People willing to pay pe for close apartments get close apartments. People not willing to pay pe for close apartments get distant apartments.
Market Supply Curve for Apartments
p
100
QS
Competitive Market Equilibrium
rental price quantity demanded of close apartments exceeds quantity available price will rise. “high” rental price quantity demanded less than quantity available price will fall.
Economic Modeling Assumptions
Two
微观经济学双语课件
1.2 ECONOMICS: A SOCIAL SCIENCE
Goal of economists is to discover how the economic world works. Economists distinguish between:
• Positive statements（实证经济学）: What is • Normative statements（规范经济学）: What ought to be The task of economic science:
The condition that arises because the available resources are insufficient to satisfy unlimited wants. Faced with scarcity, we must make choices—we must choose among the available alternatives. The choices we make depend on the incentives we face.
Checkpoint 1.1
1. Give the definition of following statement (1) Scarcity (2) Incentive (3) Economics (4) Microeconomics (5) Macroeconomics 2. Economists studies choice that arise from one fact. What is the fact ? 3. Provide 3 examples of wants in China today that are especially pressing but not satisfied. 4. Provide an examples of an incentive that is like a carrot and one that like a stick.（tax or subsidy ）
微观经济学英文版第一章课件-PPT精品文档
Chapter 1
Slide 6
关于教材的使用(讲授章节 )
第一篇 导论:市场和价格(1-2)
第1章 绪论 第2章 供给与需求的基本原理
第二篇 生产者,消费者以及竞争性市场(3-9)
第3章 消费者行为
第4章 个别需求与市场需求(1-4) 第6章 生产
第7章 生产成本(1-4)
运用统计学和计量经济学的技术,理论可
Chapter 1
Slide 26
理论和模型 Theories and Models
微观经济分析 Microeconomic Analysis
理论的有效性(和有用性) Validating a Theory
在假设既定的前提下,理论的有效性取决 于预测(和解释)的质量. The validity of a theory is determined by the quality of its prediction, given the assumptions.
Unemployment
Chapter 1
Slide 17
绪论 Preliminaries
微观经济学和宏观经济学的联系 The Linkage Between Micro and Macroeconomics
微观经济学是宏观经济分析的基础 Microeconomics is the foundation of macroeconomic analysis 宏观经济学也涉及市场分析(行为分析) 宏观经济学(部分内容)是微观经济学的延伸
Chapter 1
Slide 29
实证和规范 Positive Versus Normative Analysis
《微观经济学microeconomics》英文版全套课件(101页)
The economic constraint:
px p1x1 ... pL xL w
The Walrasian budget set (Definition 2.D.1)
Bp,w {x RL : px w}
or
u(x* ) xl
pl
px w
Solution: Walrasian demand function x*( p, w)
Utility Maximization -- Example
Example 3.D.1: the transformed Cobb-Douglas Utility Function
Expenditure Function
Expenditure function e( p,u) Min px s.t. u(x) u {x}
Properties: 1. Homogeneous of degree of one in p 2. Strictly increasing in u and nondecreasing in p 3. Concave in p 4. Continuous in p and u
Comparative Statics – Wealth Effects
The consumer’s Engel function x( p, w)
The wealth effect xl ( p, w) / w or Dwx( p, w) Normal goods and inferior goods
A choice rule C(B) B
The weak axiom of revealed preference (WARP): if x is revealed at least as good as y, then y cannot be revealed preferred to x
微观经济学英文版
Chapter 1: The Fundamentals of Economics
Exercise & Discussion
Assume that Econoland produces haircuts and shirts with inputs of labor. Econoland has 1000 hours of labor available. A haircut requires ½ hour of labor, while a shirts requires 5 hours of labor. Construct Econoland’s production-possibility frontier.
can choose to produce gun or C
butter.(shown in the chart)
D
E
F
Butter 0 1 2 3 4 5
Guns 15 14 12 9 5 0
Chapter 1: The Fundamentals of Economics (C. Society’s technological possibilities)
Chapter 1: The Fundamentals of Economics（A. Introduction）
1.2 Microeconomics and Macroeconomics
What is Microeconomics ?
It is concerned with the behavior of individual entities such as markets, firms and households.
平狄克微观经济学(英文)01PPT课件
• A company must understand who its actual and potential
competitors are for the various products that it sells or might sell in the future.
Market Price
● market price Price prevailing in a competitive market.
Chapter 1: Preliminaries
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall • Microeconomics • Pindyck/Rubinfeld, 7e.
Chapter 1: Preliminaries
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall • Microeconomics • Pindyck/Rubinfeld, 7e.
10 of 18
1.2 WHAT IS A MARKET?
Theories and Models
In economics, explanation and prediction are based on theories. Theories are developed to explain observed phenomena in terms of a set of basic rules and assumptions.
微观经济学高级版英文原版课件
Chapter1:Key conceptsFebruary19,20131IntroductionEconomics is the study of choice under scarcity.Typically,consumers want more goods and services than they can afford to buy.Similarly,businesses face constraints in terms what funds and resources that they can ernments and countries also face the same type of problem:a government might want to address a large number of social problems,but they have limited resources with which to do so.Economics is about understanding how a party deals with the fact that when they use their resources to pursue one option,they cannot use those resources to do something else.And so,a consumer may have to choose between a new pair of shoes or a textbook,afirm may have to choose between developing a new product or launching a marketing campaign, and the government may have to choose between improving education or targeting crime.To understand these issues,economics has developed a set of tools that can be used to analyze these problems.This book provides an introduction to those tools.They can be used to help understand economic problems wherever they arise,be it businesses understanding the markets they compete in,or governments trying to develop social policy,or families trying to manage their households.These tools are not meant to capture everything that is occurring in any given situation.Rather,they are designed to simplify(or to model)a complicated and potentially messy real-world issue into a tractable form that can provide valuable insights.Given that resources are limited,the key questions that an economy needs to‘decide’are:(a)what to produce;(b)how to produce it;and(c)who should get what is made.In modern economies,the answers to these questions are largely determined by the market –that is,by the interaction of sellers and buyers in the market.1Sometimes,however, the government also helps determine the answer to these questions,by regulating or intervening in the market.Consequently,our focus in this microeconomics text will be on the study of individuals(consumers,firms,and governments)and their interaction in markets.This chapter provides a few key concepts that underpin the analysis in the rest of the book,as well as economics analysis in general.1By‘market’,we simply mean a place where buyers and sellers of a particular good or service meet, such as a traditional bazaar or an online trading site.12Scarcity and opportunity costAs noted above,it is usually the case that resources are limited,so that not all wants can be met.We call this situation scarcity.Scarcity also means that individuals,businesses and societies face tradeoffs;by choos-ing one thing,a person must give up or miss out on another thing.For example,if a consumer uses their money to buy product X,they cannot then use that same money to buy something else.2We use the concept of opportunity cost to measure that tradeoff. Thus,the opportunity cost of any choice is the value of the best forgone alternative. In the example above,if the consumer buys product X,and the next best thing they could have done is buy product Y,the opportunity cost of buying X is forgoing Y.Individuals also face opportunity costs in terms of their time–that is,if a person spends his time doing one thing,he cannot also spend that time doing another.Example.Suppose Andrew prefers to spend his Saturday afternoon walk-ing.The next best thing that he could have done is to sleep,and his thirdbest choice is to go swimming.Therefore,if Andrew goes for a walk,the op-portunity cost of going for a walk is not sleeping,as this is his best foregoneopportunity.The option of swimming is not relevant here because it is notthe next best opportunity.Opportunity costs include both explicit costs and implicit costs.Explicit costs are costs that involve direct payment(or,in other words,would be considered as costs by an accountant).Implicit costs are opportunities that are forgone,but do not involve an explicit cost.3Example.Suppose Stephen decides to go to university,and his next bestoption is to work at a construction site and earn$80K over the year.Theexplicit costs are those that Stephen must directly pay to go to university,such as student fees,the cost of textbooks,and so on.The implicit costsare the opportunities that Stephen must forgo–that is,working at theconstruction site and earning$80K.It is important to note that opportunity cost only includes costs that could change if a different decision were made.Opportunity cost does not include sunk(or unrecoverable) costs.Sunk costs are costs that have been incurred and cannot be recovered no matter what.For example,if Katrien spends the weekend reading an accounting textbook, no matter what she does(such as whether or not she decides to continue studying accounting),she cannot get that time back.Similarly,if a business spent$100K on an advertising campaign last year,regardless of what they decide to do this year,that money(and effort)cannot be recovered.2It is common to hear people refer to the‘economics’of a particular thing.This colloquial statement really means that,given the limited resource available,a choice had to be made and something(possibly worthwhile)could not be done.3Sometimes,economists distinguish between‘economic costs’and‘accounting costs’.Economic costs is just another term for opportunity costs,and therefore includes explicit and implicit costs. Accounting costs refers to explicit costs only.23Marginal analysisTypically,we assume that economic agents are rational and act to maximize their benefits from their economic transactions.4For example,consumers seek to maximize their benefits from consumption andfirms seek to maximize their profits from production. One way that economic agents can solve this maximization problem is by considering the additional benefit or additional cost of any action.This sort of analysis is referred to as marginal analysis and it is a recurring theme both in this book and economics generally.For instance,consider a consumer faced with the decision of whether to buy one more unit of a particular good.That consumer might consider the extra benefit he derives from buying that extra unit;this is referred to as the marginal benefit of that extra unit of the good.The consumer might also consider the additional cost of buying one more unit;this is referred to as the marginal cost of purchasing another unit,which is typically the price of the good.In making theirfinal decision,the consumer will weigh the marginal benefit against the marginal cost of buying that extra unit.For example, if a consumer is considering buying another cup of coffee,and the marginal benefit is$5 and the marginal cost is$3,the consumer will be better offby buying the extra coffee.Each of the marginal terms noted above,and many others,will be discussed at length throughout the book.What is crucial to note is that the term‘marginal’simply means means additional or extra.That is,we interested to see what happens if we increase things(such as the number of coffees bought)by a small amount.4Ceteris paribusThe notion of ceteris paribus is also an important foundation of economic analysis.As noted,because the real world is often complicated and messy,it is often necessary to simplify real-world situations into tractable economic models,in order to better analyze them.Thus,in order to determine the effect of a particular thing,economists tend to examine the impact of one change at a time,holding everything else constant.This is often called ceteris paribus,which roughly means‘other things equal’.For instance,suppose we are interested in how a change in price will affect the quantity demanded of a good.However,in reality,demand for a good can be affected by a number of other factors,such as changes in the tastes or income of consumers,or the availability or price of substitute goods.Therefore,in order to isolate the effect of price upon quantity demanded,we need hold everything else constant.This is not to deny that in the real world multiple changes can occur at a time–they often do.Rather, to fully understand the relationship between price and demand,it is essential to isolate that relationship from other events that might also be occurring.For example,afirm 4We are not suggesting that,in the real word,consumers are always fully rational or thatfirms do not sometimes have other objectives.Rather,we adopt this simplifying assumption because it allows us to analyze the behaviour of economic agents in markets.Such analysis will be fairly accurate,provided that on average individual consumers andfirms act more or less in their own interest.3might be interested in the effect of advertising on demand for its product.To understand the impact of advertising,it is crucial to remove other factors that could affect demand, otherwise advertising could be attributed too much(or too little)influence,which could lead to poor decision-making by thefirm regarding its next advertising campaign.5Correlation and causationAnother factor to keep in mind is the difference between correlation and causation. Correlation refers to a situation in which two or more things are observed to move together(or against each other).On the other hand,causation refers to a situation where changes in one thing brings about or causes change in another thing.To make statements about causation requires an economic theory about how the world works, rather than just observing a statistical relationship between several variables.Sometimes,when we observe correlation between two variables,A and B,it is because one causes the other.Sometimes,it is because a third factor causes changes in A and B(like a rising tide causing two boats to rise in their moorings).Sometimes,there is no connection between the two variables and it is just by chance that we observed the change in both variables at the same time.Without a theory about how a change in one variable affects the other,it is not possible to say which is the case.4。
平狄克 微观经济学 英文课件—chapter_1
Chapter 1: Preliminaries
Slide 11
The Themes of Microeconomics
Microeconomics and Prices
The How
role of prices in a market economy prices are determined
Slide 3
Preliminaries
Microeconomics deals with:
Behavior of individual units
When
•
Producing
How we choose what to produce
Chapter 1: Preliminaries
Slide 4
Chapter 1: Preliminaries
Slide 29
What is a Market?
Examples
Markets
for Prescription Drugs
Well-defined markets - therapeutic drugs
Ambiguous markets - painkillers
“You
can’t always get what you want”
*Economics degree from London School of Economics
Chapter 1: Preliminaries
Slide 8
The Themes of Microeconomics
Why Not?
Chapter 1: Preliminaries
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Relationship Between Microeconomics and Macroeconomics
Different e.g.object of study ,method of analysis Contact Microeconomics is the foundation of macroeconomics Complementary Both of them can research the same economy phenomenon from different visual angle .
01:14
5
An object of study
In short, Economics studies optimal allocation and full use of resources. In detail ：
Microeconomics What ,how,for whom Macroeconomics Resources are used fully or idly? How does inflation affect purchasing power? Can economy grow?
01:14
8
Theory System of Economics
Two branches：Microeconomics and Macroeconomics
Microeconomics Another name Theory base Basic assumptions Founder Subject Key theory Major aim Individual Economics Macroeconomics Overall Economics
01:14
4
An Object of Study
The keys to Economics ----Three Entities Three Behaviors
Consumer → Umax ( Utility ) Firm → πmax ( Profit ) Government → Wmax ( Welfare )
Adam Smith
Consumer ,Firm Theory of Equilibrium Price The maximum of benefit
J.M.Keynes
Overall economy Theory of National Income The maximum of welfare
01:14
Current Economics (1930s —)
Representative : J.M.Keynes Work:General Theory of Employment ,Interest And Money Standpoint:Advocate that government interfere in economy .
Formation and Development of Current Economics
Neoclassical Economics (1870s—1930s)
Representative : A.Marshall Work:Economics Principle (1890) Standpoint: Equilibrium Price Theory, Laissez-faire
01:14
6
The Methods of Studying Economics
The methods of studying Economics
Positive Analysis Normative Analysis
Positive Analysis objective describe the facts of economy what is Normative Analysis subjective involve value judgments what ought to be or what ought not to be
The Definition of Economics
Economics is the study of how societies use scarce resources to produce valuable commodities and distribute them among different people.
01:14
10
Introduction
The End
Classical Economics (1650s—1870s)
Representative ： Adam Smith Work:The Wealth of Nations (1776) Standpoint:Laissez-faire economy
01:14 2
An Object of Study
Neo-classical economics
Complete rationality ； Clear Market ；complete information
Keynesian economics
Market mechanism is imperfect ； Government can control economy
Introduction
An Object of Study The Methods of Studying Economics Theory System of Economics
中文版
Contents
An Object of Study
Formation and Development of Current Economics
Mercantilism (17C—18C )
Representative: A.Montchrestien Work: Political Economics Presenting To King and Queen Standpoint: Advocate that government interferes in economy .
01:14
7
The Methods of Studying Economics
The other methods
Equilibrium Analysis Static state analysis and Dynamic state analysis Quality and Quantity Analysis Marginal Analysis Inductive method and Deductive Method
01:14 3
An Object of Study
The Definition of Economics
The origin of Economics
Economics originates from objective scarcity and the need of choice that the scarcity leads to. Scarcity is the term used by economists to indicate that man's desire for a “thing” exceeds the amount of it that is freely available from Nature. Choice is the act of selecting among restricted alternatives. Contents of choice: what, how, for whom.