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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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BALANCE ON SERVICES

A subset of the balance of payments current account that records the difference between the payments received for exports of services to other nations and the payments made for the imports of services from other nations. The flow of payments is for intangible services, not for physical or tangible goods. The balance on services is thus appropriately divided into services exported and services imported. Two other subsets of the current account include the balance on merchandise trade and unilateral transfers. The commonly termed balance of trade is the sum of the balance on merchandise trade and the balance on services.

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APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time wandering around the shopping mall trying to buy either a T-shirt commemorating last Friday (you know why) or a rotisserie oven that can also toast bread. Be on the lookout for door-to-door salesmen.
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Approximately three-fourths of the U.S. paper currency in circular contains traces of cocaine.
"The time your game is most vulnerable is when you're ahead; never let up. "

-- Rod Laver, Tennis player

BEA
Bureau of Economic Analisys
A PEDestrian's Guide
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