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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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AGGREGATE EXPENDITURES LINE A graphical depiction of the relation between aggregate expenditures by the four macroeconomic sectors (household, business, government, and foreign) and the level of aggregate income or production. In Keynesian economics, the aggregate expenditures line is the essential component of the Keynesian cross analysis used to identify equilibrium income and production. Like any straight line, the aggregate expenditures line is characterized by vertical intercept, which indicates autonomous expenditures, and slope, which indicates induced expenditures. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking investment, government purchases, and net exports to the consumption line.
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The Risky Business Of INSURANCEWe've avoided the clutches of Smilin' Ted, the insurance guy, during our saunter through economy, but our luck has run out. Here he comes, ready to offer you, me, and everyone else within earshot the chance to buy auto, health, life, and property insurance. If you really, REALLY care to ask, I'm sure that Smilin' Ted has other insurance possibilities as well. But, I'm not going to ask. If YOU want to know, then YOU have to ask.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time at a crowded estate auction hoping to buy either a how-to book on meeting people or clothing for your pet iguana. Be on the lookout for celebrities who speak directly to you through your television.
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This isn't me! What am I?
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In the early 1900s around 300 automobile companies operated in the United States.
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"Kites rise highest against the wind, not with it. " -- Winston Churchill, British prime minister
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AP
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