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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 specifically labeled 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.

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MARGINAL FACTOR COST CURVE

A curve that graphically represents the relation between marginal factor cost incurred by a firm for hiring an input and the quantity of input employed. A profit-maximizing firm hires the quantity of input found at the intersection of the marginal factor cost curve and marginal revenue product curve. The marginal factor cost curve for a firm with no market control is horizontal. The marginal factor cost curve for a firm with market control is positively sloped and lies above the average factor cost curve.

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Today, you are likely to spend a great deal of time at a garage sale hoping to buy either car battery jumper cables or a dozen high trajectory optic orange golf balls. Be on the lookout for the happiest person in the room.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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