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MARGINAL FACTOR COST CURVE, PERFECT COMPETITION: A curve that graphically represents the relation between marginal factor cost incurred by a perfectly competitive firm for hiring an input and the quantity of input employed. A profit-maximizing perfectly competitive 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 perfectly competitive firm with no market control is horizontal.

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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 at a going out of business sale wanting to buy either a package of blank rewritable CDs or yellow cotton balls. Be on the lookout for crowded shopping malls.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
"It is the mark of an educated mind to be able to entertain a thought without accepting it."

-- Aristotle

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Income, Nominal Gross National Product
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