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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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ECONOMIC SYSTEM The assorted institutions that society uses to answer the three basic questions of allocation and address the fundamental problem of scarcity. Another, more popular term for economic system is economy. An economy, or economic system, is the structural framework in which households, businesses, and governments undertake the production and consumption decisions that allocate limited resources to satisfy unlimited wants and needs.
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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time searching the newspaper want ads seeking to buy either an electric coffee pot with automatic shutoff or a brown leather attache case. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
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"Anyone who has never made a mistake has never tried anything new. " -- Albert Einstein, physicist
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D-J
Dow Jones
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