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INJECTION-LEAKAGE MODEL: A model used in Keynesian economics based on the equality of non-consumption expenditures (or injections) and non-consumption uses of income (leakages). On one side of the equality is saving, taxes, and imports -- the non-consumption leakages. On the other side of the equality is investment, government purchases, and exports -- the non-consumption injections. The injection-leakage model provides an alternative to the Keynesian cross for identifying equilibrium aggregate output.
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MARGINAL REVENUE CURVE, PERFECT COMPETITION A curve that graphically represents the relation between the marginal revenue received by a perfectly competitive firm for selling its output and the quantity of output sold. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve. A perfectly competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a dollar discount store hoping to buy either a handcrafted spice rack or a cell phone case. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
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"Trust yourself. You know more than you think you do. " -- Benjamin Spock, doctor
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CPI
Consumer Price Index
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