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KINKED-DEMAND CURVE ANALYSIS: An analysis that seeks to explain rigid oligopolistic prices using the kinked-demand curve. The kinked demand curve contains two distinct segments, one for higher prices that is more elastic and one for lower prices that is less elastic. The corresponding marginal revenue curve contains a vertical segment at the existing or initial quantity. Because a profit-maximizing oligopolistic firm equates marginal cost to marginal revenue, marginal cost also can take on a range of values at the existing quantity. In other words, marginal cost can increase or decrease without inducing a profit-maximizing oligopolistic firm to change price or quantity.
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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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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either a really, really exciting, action-filled video game or a coffee cup commemorating the moon landing. Be on the lookout for strangers with large satchels of used undergarments.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"Nothing so conclusively proves a man's ability to lead others as what he does from day to day to lead himself." -- Thomas J. Watson, IBM founder
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