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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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VALUE IN EXCHANGE

The ability to trade an item or asset, especially money, for other goods and services that can then be used to satisfy wants and needs. Value in exchange means that value (that is, satisfaction) is obtained indirectly through the acquisition of something else. For an item to have value in exchange it need NOT have value in use, value obtained directly from the consumption of a good or service.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store trying to buy either a replacement remote control for your stereo system or a computer that can play video games and burn DVDs. Be on the lookout for pencil sharpeners with an attitude.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"An organization's ability to learn, and translate that learning into action rapidly, is the ultimate competitive business advantage. "

-- Jack Welch, General Electric chief executive

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