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INDUCED GOVERNMENT PURCHASES: Government purchases that depend on income or production (especially national income or gross national product). An increase in national income triggers an increase in induced government purchases. Induced government purchases is graphically depicted as the slope of the government purchases line and is measured by the marginal propensity for government purchases. The induced relation between income and government purchases, as well as other induced expenditures, form the foundation of the multiplier effect triggered by changes in autonomous expenditures.
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Lesson Contents
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Unit 1: Instability |
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Unit 2: Extension |
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Unit 3: Basic Shifts |
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Unit 4: Complex Shifts |
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Unit 5: Synthesis | |
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Aggregate Shocks
In this lesson we use the aggregate market model to analyze assorted disruptions that cause shifts of the aggregate demand, short-run aggregate supply, and long-run aggregate supply curves. The reason for doing this, of course, is to explain and understand macroeconomic activity, especially business cycle instability that causes inflation and unemployment. - The first unit of this lesson reviews the aggregate market and examines how it is affected macroeconomic instability.
- In the second unit, we take and look at assorted demands on both the demand side and supply side of the aggregate market that cause shorts to the aggregate market.
- We then move into an analysis of six basic shifts involving increases and decreases in the aggregate demand, short-run aggregate supply, and long-run aggregate supply curves.
- The fourth unit builds on these six basic shifts to examine four complex shifts in which recessionary and inflationary gaps trigger self-correction adjustments of the short-run aggregate supply.
- We close out this lesson in the fifth with a thought or two on how the aggregate market can be used to explain business cycle fluctuations.
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PERFECT COMPETITION, DEMAND The demand curve for the output produced by a perfectly competitive firm is perfectly elastic at the going market price. The firm can sell all of the output that it wants at this price because it is a relatively small part of the market. As a price taker, the firm has no ability to charge a higher price and no reason to charge a lower one. The market price facing a perfectly competitive firm is also average revenue and, most important, marginal revenue.
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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either a cell phone case or a pair of designer sunglasses. Be on the lookout for a thesaurus filled with typos.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"The past cannot be changed. The future is yet in your power. " -- Hugh White, U.S. Senator
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PSID
Panel Study of Income Dynamics
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