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BARRIER TO ENTRY: An institutional, government, technological, or economic restriction 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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RESOURCE MARKETS

Markets that exchange the services of the four factors of production--labor, capital, land, and entrepreneurship. The buyer of factor services is business sector. The seller of these services is the household sector. The study of macroeconomics is concerned with imbalances in the resource markets, especially surpluses and the resulting unemployment of resources. The resource markets, also termed factor markets, are one of three primary sets of macroeconomic markets. The other two are product markets and financial markets.

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Today, you are likely to spend a great deal of time wandering around the shopping mall hoping to buy either a lighted magnifying glass or a small, foam rubber football. Be on the lookout for high interest rates.
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The New York Stock Exchange was established by a group of investors in New York City in 1817 under a buttonwood tree at the end of a little road named Wall Street.
"If things are not going well with you, begin your effort at correcting the situation by carefully examining the service you are rendering, and especially the spirit in which you are rendering it."

-- Roger Babson, statistician and columnist

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