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Scarcity
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The limited nature of society's resources
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Economics
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The study of how society manages its scarce resources
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Example of Economics
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How people decide what to buy, how much to work, save, and spend
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People Face Tradeoffs
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Principle #1
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True
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Do all decisions involve tradeoffs? T/F
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Going to a party the night before your midterm leaves less time for studying
Having more money to buy things requires working longer hours, which leaves less time for leisure
Having more money to buy things requires working longer hours, which leaves less time for leisure
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Example of a Tradeoff:
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Efficiency
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When society gets the most from its scarce resources
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Equality
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When prosperity is distributed uniformly among society's members
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Efficiency vs. Equality
To achieve greater equality, income could be redistributed from wealthy to poor. However, this reduces incentive to work and produce, in turn shrinks the size of the economic "pie"
To achieve greater equality, income could be redistributed from wealthy to poor. However, this reduces incentive to work and produce, in turn shrinks the size of the economic "pie"
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What important tradeoff does society face?
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The cost of something is what you give up to get it
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Principle #2
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Opportunity Cost
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The specific value of the best alternative given up; it is relative for decision making
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Going to college for a year is not just the tuition, books, and fees but also the foregone wages
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Example of Opportunity Cost:
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Rational People Think at the Margin
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Principle #3
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Rational People
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Makes decisions by evaluating costs and benefits or marginal changes, incremental adjustments to an existing plan
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When a manager considers whether to increase output, he/she compares the cost of the needed labor and materials to the extra revenue
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Examples of Rational People:
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People Respond to Incentives
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Principle #4
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Incentive
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Something that induces a person to act; the prospect of a reward or punishment
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Incentives
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What do Rational People respond to?
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When cigarette taxes increase, teen smoking falls
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Example of Incentive:
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Trade Can Make Everyone Better Off
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Principle #5
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...
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Rather than being self-sufficient, people can specialize in producing one good or service and exchange it for other goods.
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Trade and Specialization
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What can countries benefit from?
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Market
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A group of buyers and sellers (need not to be in a single location)
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WHAT goods to produce
HOW to produce them
HOW MUCH of each to produce
WHO gets them
HOW to produce them
HOW MUCH of each to produce
WHO gets them
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Organize Economic Activity means determining:
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Markets are Usually a Good Way to Organize Economic Activity
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Principle #6
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Market Economy
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Allocates resources through the decentralized decisions of many households and firms as they interact in markets
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"The Wealth of Nations"
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Adam Smith was the author of...
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Invisible Hand
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According to Adam Smith, this force best regulates the free market in a capitalist economy
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Governments can Sometimes Improve Market Outcomes
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Principle #7
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Price
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The interaction of buyers and sellers determines...
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...
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Prices guide self-interested households and firms to make decisions that, in many cases, maximize society's economic well-being.
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Enforce Property Rights (with police courts)
People are less inclined to work, produce, invest, or purchase if large risk of their property being stolen
People are less inclined to work, produce, invest, or purchase if large risk of their property being stolen
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Important Role for Gov't
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Market Failure
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When the market fails to allocate society's resources efficiently
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1. Externalities
2. Market Power
2. Market Power
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What are causes of Market Failure:
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Externality
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When the production or consumption of a good affects bystanders ex: Pollution
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Market Power
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A single buyer or seller has substantial influence on market price ex: Monopoly
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Efficiency
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What may public policy promote
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Promote Equity
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Gov't may alter outcome to...
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A Country's Standard of Living Depends on its Ability to Produce Goods & Services
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Principle #8
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Standards of Living
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Huge variations in ....... across countries and over time
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The U.S Standard of Living today is about eight times larger than 100 years ago
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Average income in rich countries is more than ten times average income in poor countries
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Productivity
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The most important determinant of living standards is ...
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Productivity
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The amount of goods and services produced per unit of labor
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Equipment, skills and technology available to workers
Other factors: Labor unions, competition from abroad- have far less impact on living standards
Other factors: Labor unions, competition from abroad- have far less impact on living standards
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Productivity depends on the ...
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Prices Rise When the Government Prints Too much Money
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Principle #9
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Inflation
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Increases the general level of prices
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Excessive growth in the quantity of money, which causes the value of money to fall
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What is inflation caused by?
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The greater the inflation rate
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The faster the gov't creates money...
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Society Faces a Short-run Tradeoff between Inflation and Unemployment
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Principle #10
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...
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Tradeoff is always present