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HERFINDAHL-HIRSHMAN 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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AVERAGE-MARGINAL RELATION A mathematical connection between a marginal value and the corresponding average value stating that the change in the average value depends on a comparison between the average and the marginal. This mathematical relation between average and marginal surfaces throughout the study of economics, especially production (average product and marginal product), cost (average total cost and marginal cost), and revenue (average revenue and marginal revenue). A similar relation is that between a total value and the corresponding marginal value.
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BLACK DISMALAPOD [What's This?]
Today, you are likely to spend a great deal of time at a garage sale trying to buy either a coffee cup commemorating last Friday (you know why) or a wall poster commemorating the first day of spring. Be on the lookout for bottles of barbeque sauce that act TOO innocent. Your Complete Scope
This isn't me! What am I?
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Lombard Street is London's equivalent of New York's Wall Street.
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"Difficulty is the excuse history never accepts. " -- Edward R. Murrow, News broadcaster
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SAS Statistical Analysis Software
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