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ENTRY BARRIER: 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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CONSERVATIVE

A political view that favors--(1) limited government intervention in the economy, (2) extensive reliance on markets, (3) strong national defense, (4) protection and promotion of existing cultural ideals and beliefs, and (5) economic rewards predominately based on productive efforts.

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Today, you are likely to spend a great deal of time touring the new suburban shopping complex looking to buy either a set of luggage with wheels or a birthday gift for your aunt. Be on the lookout for pencil sharpeners with an attitude.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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