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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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POLITICAL GAME

The political system can be thought of as a game, a contest between two groups of players. Rulers are the ones who set the rules. Rulees are the ones who must abide by the rules. The political game, of course, has serious consequences, with winners and losers. The distribution, either concentrated or dispersed, of these consequences can have a profound effect on the game. The study of public choice provides insight into the economic efficiency with which the political game is played.

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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites looking to buy either a 200-foot blue garden hose or a video camera with stop action features. Be on the lookout for slightly overweight pizza delivery guys.
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This isn't me! What am I?

Al Capone's business card said he was a used furniture dealer.
"It is part of the American character to consider nothing as desperate. "

-- President Thomas Jefferson

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