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ECONOMIC: Relating to economics or the study of the economy. This word is commonly added to other terms to emphasize its importance to economics. A few examples are economic cost, economic profit, economic goal, economic policies, and economic thinking.

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CONCENTRATION RATIOS

A family of measures of the proportion of total output in an industry that is produced by a given number of the largest firms in the industry. The two most common concentration ratios are for the four largest firms and the eight largest firms. The four-firm concentration ratio is the proportion of total output produced by the four largest firms in the industry and the eight-firm concentration ratio is proportion of total output produced by the eight largest firms in the industry. Concentration ratios are commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control of the largest firms in the industry. A related measure is the Herfindahl index.

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APLS

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Today, you are likely to spend a great deal of time at an auction seeking to buy either a cross-cut paper shredder or a birthday greeting card for your father. Be on the lookout for gnomes hiding in cypress trees.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
"The truth is not for all men, but only for those who seek it. "

-- Ayn Rand, writer

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Brookings Papers on Economic Activity
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