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COMPETITIVE MARKET: A market with a large number of buyers and a large number of sellers, such that no single buyer or seller is able to influence the price or any other aspect of the market -- no one has any market control. A competitive market achieves efficiency in the use of our scarce resources if there are no market failures present.

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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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Today, you are likely to spend a great deal of time at a garage sale trying to buy either a remote controlled sports car with an air spoiler or semi-gloss photo paper that works with your neighbor's printer. Be on the lookout for deranged pelicans.
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During the American Revolution, the price of corn rose 10,000 percent, the price of wheat 14,000 percent, the price of flour 15,000 percent, and the price of beef 33,000 percent.
"The only thing that will stop you from fulfilling your dreams is you. "

-- Tom Bradley, former Los Angeles mayor

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