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TOTAL COST AND MARGINAL COST: A mathematical connection between marginal cost and total cost stating that marginal cost IS the slope of the total cost curve. If the total cost curve has a positive slope (that is, is upward sloping), then marginal cost is positive. Moreover, if the total cost curve has a positive and increasingly steeper slope, then the marginal cost is positive and rising. If the total cost curve has a positive and decreasingly steeper slope, then the marginal cost is positive but falling.
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AGGREGATE EXPENDITURES The total expenditures on gross domestic product undertaken in a given time period by the four sectors--household, business, government, and foreign. Expenditures made by each of these sectors are commonly termed consumption expenditures, investment expenditures, government purchases, and net exports. Aggregate expenditures (AE) are a cornerstone in the study of macroeconomics, playing critical roles in Keynesian economics, aggregate market analysis, and to a lesser degree, monetarism. In particular, aggregate expenditures are combined with the price level as aggregate demand.
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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius trying to buy either storage boxes for your computer software CDs or a set of tires. Be on the lookout for jovial bank tellers.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"It is very rare that you meet with obstacles in this world (that) the humblest man has not the faculties to surmount. " -- Henry David Thoreau, philosopher
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DOC
Department of Commerce
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