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LONG-RUN AGGREGATE MARKET: A macroeconomic model relating the price level and real production under the assumption that ALL prices flexible. This is one of two aggregate market submodels used to analyze business cycles, aggregate production, unemployment, inflation, stabilization policies, and related macroeconomic phenomena. The other is the short-run aggregate market. The long-run aggregate market isolates the interaction between aggregate demand and long-run aggregate supply. The key assumption of this model is that ALL prices, especially resource prices, are flexible. The primary result of this model is that the economy achieves long-run equilibrium at full-employment real production.
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Lesson Contents
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Unit 1: The Exchange |
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Unit 2: The Numbers |
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Unit 3: A Graph |
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Unit 4: Adjustment |
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Unit 5: Efficiency | |
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Market Equilibrium
In this lesson, we'll see how buyers (discussed in the demand lesson) come together with sellers (discussed in the supply lesson) to exchange commodities using a market. More precisely, this lesson develops an abstract market model, or market analysis, that we can use to explain and understand a wide range of real world exchanges. - This lesson begins in the first unit, The Exchange, with an overview of the basic exchange process underlying markets, including the notion of equilibrium, the roles played by price and quantity, and the importance of competition.
- In the second unit, The Numbers, we work through a simple market analysis using demand and supply schedules, highlight both equilibrium and disequilibrium conditions.
- The third unit, A Graph, then carefully examines the notion of market equilibrium using demand and supply curves, which generates the widely used graphical model of the market.
- Moving onto the fourth unit, Adjustment, we use the graphical market model to investigate the automatic market responses to shortages and surpluses.
- The lesson concludes in the fifth unit, Efficiency, by considering the relation between market exchanges and efficiency.
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MARGINAL REVENUE CURVE A curve that graphically represents the relation between the marginal revenue received by a firm for selling its output and the quantity of output sold. A firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve. The marginal revenue curve for a firm with no market control is horizontal. The marginal revenue curve for a firm with market control is negatively sloped and lies below the average revenue curve.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius trying to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for pencil sharpeners with an attitude.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
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"There's only one corner of the universe you can be certain of improving and that's your own self. " -- Aldous Huxley, writer
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Econometrica
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