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ASSUMPTIONS, KEYNESIAN ECONOMICS: The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.
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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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WHITE GULLIBON
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Today, you are likely to spend a great deal of time browsing about a thrift store hoping to buy either a birthday gift for your aunt or a pair of leather sandals that won't cause blisters. Be on the lookout for cardboard boxes.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Most human beings have an almost infinite capacity for taking things for granted. " -- Aldous Huxley, writer
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EC
European Community
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