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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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CONTRACTION

A phase of the business cycle characterized by a general period of declining economic activity. A contraction is one of two basic business cycle phases. The other is expansion. The transition from contraction to expansion is termed a trough and the transition from expansion to contraction is termed a peak. The popular term for contraction, one that frequently shows up in the media, is recession.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors seeking to buy either arch supports for your shoes or an AC adapter that works with your MPG player. Be on the lookout for poorly written technical manuals.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"If football taught me anything about business, it is that you win the game one play at a time."

-- Fran Tarkenton, Football Player

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