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ENTRY BARRIERS: Institutional, government, technological, or economic restrictions on the entry of firms into a market or industry. The four primary barriers to entry are: resource ownership, patents and copyrights, government restrictions, and start-up costs. Barriers to entry are a key reason for market control and the inefficiency that this generates. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.

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ECONOMIST

A person who specializes in economics, especially through the study of economic theories and the accumulated body of economic knowledge. Economists spend their working lives at universities, colleges, government agencies, banks, insurance companies, and multinational corporations. They study economic events, analyze government policies, undertake scientific investigations, and of course pass along economic information to eager students and others seeking enlightenment.

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Today, you are likely to spend a great deal of time wandering around the shopping mall seeking to buy either a coffee cup commemorating the 1960 Presidential election or a how-to book on fixing your computer, with illustrations. Be on the lookout for jovial bank tellers.
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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.
"I believe that every right implies a responsibility, every opportunity, an obligation, every possession, a duty. "

-- John D. Rockefeller, industrialist

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