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MARGINAL COST CURVE: A curve that graphically represents the relation between marginal cost incurred by a firm in the short-run product of a good or service and the quantity of output produced. This curve is constructed to capture the relation between marginal cost and the level of output, holding other variables, like technology and resource prices, constant. The marginal cost curve is U-shaped. Marginal cost is relatively high at small quantities of output, then as production increases, declines, reaches a minimum value, then rises. This shape of the marginal cost curve is directly attributable to increasing, then decreasing marginal returns (and the law of diminishing marginal returns).
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INJECTIONS LINE A graphical representation of the relation between the level of aggregate production and one or more injections. The three injections (non-consumption expenditures on aggregate production) are investment expenditures, government purchases and exports. The injections line sequentially adds, or layers, each of these three expenditures depending on the number of sectors used in the analysis (two, three, or four). The slope of the injections line depends on which if any of the expenditures are induced by aggregate production. The injections line is combined with the leakages line (containing saving, taxes, and imports) in the Keynesian injections-leakages model.
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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites hoping to buy either a how-to book on the art of negotiation or a flower arrangement for your aunt. Be on the lookout for slightly overweight pizza delivery guys.
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In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
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"Only great minds can afford a simple style." -- Stendhal, writer
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BNA
Bureau of National Affairs
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