introduction principles of microeconomics 2013 boris nikolaev
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Introduction Principles of Microeconomics 2013 Boris Nikolaev. Why bother studying economics?. - PowerPoint PPT PresentationTRANSCRIPT
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Introduction Principles of Microeconomics 2013
Boris Nikolaev
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Why bother studying economics?"The ideas of economists and political philosophers, both when they are right and when they are wrong, are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men, who believe themselves to be quite exempt from any intellectual influence, are usually the slaves of some defunct economist. Madmen in authority, who hear voices in the air, are distilling their frenzy from some academic scribbler of a few years back."
-- Maynard Keynes
• It matters.
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Diversity of Ideas (How vs What)Classical Liberalism
• Anarcho Capitalist• Public Choice• Chicago School• Natural Rights• Austrian Economics
InstitutionalismKeynesian EconomicsEvolutionary EconomicsNeoclassicalBehavioral…and the list goes on.
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Interdisciplinary Approach
• Evolved out of the field of moral philosophy.• Economics as the study of human action.
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Economics…
• Gives you a unique perspective about the world.
• Challenges you to think about variety of ideas.• It matters.• And, ultimately, is related to the other social
sciences.• And, yes, it is FUN.
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Short history of economics
• Tradition – 99% of human history• Authority – around 5000BC • Free-markets. Meritocracy.
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Life in Early 1900’s
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New York in 1900’s
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A Typical Street in the 1900’s
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Economics theorieso Classical economics - up until the 1930’s.
o Limited government, economy is self-regulating.o Keynesian Economics. 1930’s GD.
o Need for government intervention. Animal spirits.
o Monetarism. 1970’s stagflation.o Crisis are caused by monetary policy. Supply-side
is also important.o The Great Recession
o Economics has failed to predict the crisis. Revision of economic assumptions and ideologies.
• Other schools: Institutional, Marxist, Evolutionary, Austrian.
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Some questions that economists try to answer?
o Which economic system is better -- capitalism or communism? o Why do we have a government? What is the proper role of
government in the economy?o What is the effect of war on the economy?o Should we legalize drugs? …or prostitution?o Is the minimum wage law effective? What about rent control?o We live in the richest society ever. But are we happier?o Can economist determine prices?o Should we have anti-trust laws? – i.e. Is big business better for
the economy than small business?
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Unintended Consequenceso Actions have unintended consequences.o Could be good or bad, desired and undesired.o Example 1 – cotton subsidies.o Do you support government price support?
GOOD INTENTIONS GOOD RESULTS
o Example 2: Endangered Species Act
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Example: The Prisoner’s Dilemma GameThe dark side of rationality
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Evolutionary Economics/ Psychology
Conclusions:
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The Prisoner’s Dilemma Game
Let’s see how the prisoner’s dilemma game plays itself out in the real world.
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What is Economics?“Economics is the study of man in the ordinary
business of life” Alfred Marshall
“Study of choices humans make to attain their goals under scarcity.”
Textbook
CHOICE + SCARCITY = ECONOMIC PROBLEM
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Methodological Issues1. Positive vs Normative Economics
Problems with the view that economics should be merely a descriptive science.
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Methodological Issues2. Is economics a science?
3. What kind of a science economics is?
4. How much abstraction is legitimate?
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Economic Foundations
Five basic economic ideas / assumptions:1. People are rational & self-interested2. Value is subjective.3. Incentives matter.4. People make decisions at the margin.5. Information is costly.
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People are rational & self-interested
Assumption: People are rational & self-interested agents that act to maximize their utility (happiness, satisfaction).
• Friedman on Greed [watch here]• Self-Interest vs Egoism
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The Virtue of Selfishness• Ayn Rand: “The Virtue of Selfishness”• Moral theory called Objectivism.• “Atlas Shrugged” also by Rand.• Ayn Rand on Objetivism and Altruism [watch here]
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Value is subjective.
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People respond to incentives
What do you think?
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The surprising truth about …
…what motivates us [watch here]
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Thinking … at the margin.
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Hedonistic Calculus
The right action is the one that maximizes the NET happiness.
• This is based on Bentham’s Utilitarian moral theory (aka calculus of hedonism).
• Max (Benefits – Costs)• John Stuart Mill
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Information is costly
• Why is it rational to stay ignorant?
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Basic Economic Lessons
• Opportunity cost (what is unseen).• Mutual gains from trade.• Division of labor creates wealth.• Property rights & prosperity• Comparative advantage.• Spontaneous Order• Markets fail. Externalities.
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Microeconomics Stimulus ProjectMicroeconomics 2013, Spring 2012
[watch here]
“Economics is haunted by more fallacies than any other study known to man” H.Hazlitt
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Opportunity Cost (what is unseen)
• The value of your next best alternative.
[watch here]
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The Cost of College Education
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The Opportunity Cost of the War in Iraq
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Q&A
• Would it be a good economic decision for Oprah to pick up a $10 banknote that she found on the street? (hint: last year Oprah made $300 million).
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Opportunity CostEconomics (and life) is about trade-offs.
REMEMBER: When you decide what to do with your
resources (time, money, etc…), you are also choosing what NOT to do with them.
“There ain’t no such thing as a free lunch.”[watch here]
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Mutual gains from trade.
Trade is NOT a zero sum game (all parties benefit).
Let’s demonstrate this.
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Comparative Advantage
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Division of Labor & Prosperity• Specialization and trade produces wealth.• How much of what you consume you actually
produced?• DL depends on the extent of the market.• Do you think DL is good?
[watch here]
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The Economic Way of Thinking
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9 month project at Oxford
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Property Rights & Prosperity
• The Tragedy of the Commons.
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Spontaneous Order
• Adam Smith’s invisible hand.
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Markets fail.
Externalities: unintended side effects from otherwise useful transactions. Could be positive or negative.
Public goods: Useful services that tend to be underprovided by the market system.
Asymmetric Information: market transactions fail because one of the parties has better information than the other. Moral hazard, adverse selection.
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Governments fail too
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Economic Fallacies
• Money is wealth.
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Miscellaneous• Micro vs Macro
• Inductive vs Deductive Reasoning
• The Scientific Method
• Generalizations
• Ceteris Paribus (other things equal, all else constant)
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Economics as a career
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http://www.storyofstuff.com/
http://www.youtube.com/watch?v=jqxENMKaeCU (Home) “We are living in exceptional times. Scientists tell us that we have 10
years to change the way we live, avert the depletion of natural resources and the catastrophic evolution of the Earth's climate.
The stakes are high for us and our children. Everyone should take part in the effort, and HOME has been conceived to take a message of mobilization out to every human being.”