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HERFINDAHL INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.
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KINKED-DEMAND CURVE ANALYSIS An analysis using the kinked-demand curve to explain rigid prices often found with oligopoly. 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. Key to this analysis is that the corresponding marginal revenue curve contains three segments--one associated with the more elastic segment, one associated with the less elastic segment, and one associated with the kink. A profit-maximizing firm can then equate marginal cost to a wide range of marginal revenue values along the vertical segment of the marginal revenue curve. This suggests that marginal cost must change significantly before an oligopolistic firm is inclined to change price.
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites wanting to buy either a birthday greeting card for your father or a T-shirt commemorating the first day of spring. Be on the lookout for vindictive digital clocks with revenge on their minds.
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"When you play, play hard; when you work, don't play at all. " -- Theodore Roosevelt, 26th US president
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NEDC
National Economic Development Council
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