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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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INELASTIC SUPPLY The general elasticity relation in which relatively large changes in price cause relatively small changes in quantity supplied. Large changes in price cause relatively small changes in quantity supplied or the percentage change in quantity supplied is smaller than the percentage change in price. This characterization of elasticity is most important for the price elasticity of supply. Inelastic supply is one of two general elasticity relations for supply. The other is elastic supply.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time watching infomercials wanting to buy either a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki or decorative garden figurines. Be on the lookout for attractive cable television service repair people.
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This isn't me! What am I?
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
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"The truth is not for all men, but only for those who seek it. " -- Ayn Rand, writer
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JPE
Journal of Political Economy
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