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EIGHT-FIRM CONCENTRATION RATIO: The proportion of total output in an industry that's produced by the eight largest firms in the industry. This is one of two common concentration ratios. The other is the four-firm concentration ratio. The eight-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and how market control is held by the eight largest firms in the industry.

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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 at a garage sale hoping to buy either pink cotton balls or a genuine down-filled comforter. Be on the lookout for celebrities who speak directly to you through your television.
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Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
"The time to repair the roof is when the sun is shining."

-- John F. Kennedy, 35th U. S. president

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