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INJECTION: A non-consumption expenditure on gross domestic product, including investment expenditures, government purchases, and exports. Injections are combined with leakages in the injection-leakage model used to identify equilibrium aggregate output in Keynesian economics. The notion of injection is best viewed through the circular flow, in which investment expenditures, government purchases, and exports are "injected" into the main flow between output, factor payments, national income, and consumption.
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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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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center wanting to buy either a large green chalkboard shaped like the state of Maine or a replacement battery for your pocket calculator. Be on the lookout for telephone calls from long-lost relatives.
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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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"Don't judge each day by the harvest you reap but by the seeds that you plant. " -- Robert Louis Stephenson, writer
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TSE
Tokyo Stock Exchange
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