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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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SOCIAL SCIENCE The scientific study of society--of human behavior and of social interactions. Economics is one of several social sciences. Others are sociology, political science, and anthropology. Economics is considered a social science because it seeks to explain how society deals with the scarcity problem.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club wanting to buy either a 50-foot blue garden hose or a turbo-powered vacuum cleaner. Be on the lookout for slow moving vehicles with darkened windows.
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This isn't me! What am I?
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A half gallon milk jug holds about $50 in pennies.
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"When we do the best we can, we never know what miracle is wrought in our life or in the life of another. " -- Helen Keller, lecturer, author
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ACIR
Advisory Council on Intergovernmental Relations
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