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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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Lesson 2: Economic Science | Unit 2: Theory
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Page: 7 of 20
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Topic:
Economic Theories
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Three common economic theories:- Markets theory: It helps us understand how and why prices change, shortages and surpluses occur, and markets are monopolized.
- Aggregate Markets theory: It uses principles and concepts developed in the theory of markets, but adapts them to the study macroeconomic things like inflation, unemployment, national production, and business cycles.
- Keynesian theory: Named after it's creator John Maynard Keynes, it was developed to explain high rates of unemployment and other economic conditions that existed during the Great Depression of the 1930s.
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WORLD VIEW An aspect of a scientific theory that includes fundamental, and unverifiable, axioms, beliefs, and values about how the world works. One example of an unverifiable world view axiom is belief in the existence of a supreme, omnipotent, omniscience being--that is, God. Political philosophies, which are essential to economic theories and policies, are intertwined with alternative world views.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs wanting to buy either a birthday gift for your father that doesn't look like every other birthday gift for your father or a green fountain pen. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
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"The greatest things ever done on Earth have been done little by little. " -- William Jennings Bryan
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NASD
National Association of Securities Dealers
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