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AGGREGATE EXPENDITURE EQUATION: An equation indicating that aggregate expenditures (AE) are the sum of consumption expenditures (C), investment expenditures (I), government purchases (G), and net exports (X-M), stated as: AE = C + I + G + (X-M). This equation surfaces in the Keynesian economic income-expenditure model in the form of the aggregate expenditures line. However, it's also central throughout the study of macroeconomics, including aggregate demand and the measurement of gross domestic product.
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LAW OF DIMINISHING MARGINAL RETURNS A principle of short-run production stating that as a firm combines more of a variable input with a fixed input, the marginal product of the variable input eventually declines. This is THE economic principle underlying the analysis of short-run production for a firm. It offers an explanation for the law of supply and the positive slope of the market supply curve.
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GREEN LOGIGUIN [What's This?]
Today, you are likely to spend a great deal of time looking for a downtown retail store looking to buy either a how-to book on meeting people or clothing for your pet iguana. Be on the lookout for neighborhood pets, especially belligerent parrots. Your Complete Scope
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
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"Habit is a cable; we weave a thread of it each day, and at last we cannot break it. " -- Horace Mann, educator
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NSF National Science Foundation
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