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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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PRINCIPLE OF MINIMUM DIFFERENCES A principle stating that monopolistically competitive firms seek to maintain similarities between products at the same time they promote differences. Similarities enable substitutability, such that one firm can attract the buyers away from other firms. Differences enable uniqueness and market control, such that each firm has market control and is able to charge a higher price than achieved with perfect competition. This principle is also termed Hotelling's paradox.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time looking for a downtown retail store seeking to buy either a set of tires or a birthday gift for your grandfather. Be on the lookout for gnomes hiding in cypress trees.
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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"A leader, once convinced that a particular course of action is the right one, must . . . be undaunted when the going gets tough." -- President Ronald Reagan
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ARP
Average Revenue Product
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