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AD-AS MODEL: An economic model relating the price level and real production that is used to analyze business cycles, gross domestic product, unemployment, inflation, stabilization policies, and related macroeconomic phenomena. The AS-AD model, inspired by the standard market model, captures the interaction between aggregate demand (the buyers) and short-run and long-run aggregate supply (the sellers).
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Lesson Contents
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Unit 1: The Concept |
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Unit 2: Resources |
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Unit 3: Opportunity Cost |
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Unit 4: College Cost |
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Unit 5: THE Problem | |
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Scarcity
In this lesson you'll see why scarcity tends to make economists grumpy. You'll see that scarcity is a perpetual condition that exists because people have unlimited wants and needs, but limited resources. You'll also see how this scarcity problem underlies the common notion of cost, which is integral to the study of economics. The five units contained in this lesson provide a tour through the economic problem of scarcity. - The first unit, A Big Problem, examines the fundamental concept of scarcity -- the combination of limited resources and unlimited wants and needs -- that is virtually synonymous with the study of economics.
- The second unit, Resources, discusses the four basic categories of limited resources -- labor, capital, land, and entrepreneurship -- which produce the goods that are used to satisfy unlimited wants and needs.
- In the third unit, Opportunity Cost, we take a look at the notion of opportunity cost and see how it is related to the scarcity problem.
- We then turn out attention in the fourth unit, College Cost, to a simple example of the explicit and implicit costs of attending college.
- The fifth and final unit, THE Big Problem, in this lesson then ponders why scarcity is considered THE economic problem and provides a little insight into why economists are grumpy.
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DEMAND AND SUPPLY INCREASE A simultaneous increase in the willingness and ability of buyers to purchase a good at the existing price, illustrated by a rightward shift of the demand curve, and an increase in the willingness and ability of sellers to sell a good at the existing price, illustrated by a rightward shift of the supply curve. When combined, both shifts result in an increase in equilibrium quantity and an indeterminant change in equilibrium price.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs looking to buy either a genuine down-filled comforter or a 200-foot blue garden hose. Be on the lookout for high interest rates.
Your Complete Scope
This isn't me! What am I?
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"Old age isn't so bad when you consider the alternative. " -- Cato, Roman orator
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IRPP
Institute for Research on Public Policy
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