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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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MARGINAL UTILITY OF INCOME The change in utility resulting from a given change in income. This is a specialized case of the general notion of marginal utility, which is simply the change in utility resulting from a given change in the consumption of a good. Marginal utility of income is key to identifying alternative risk preferences, including risk aversion, risk neutrality, and risk loving. These three risk preferences are indicated by three marginal utility of income possibilities, decreasing (risk aversion), increasing (risk loving), and constant (risk neutrality).
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time searching for rummage sales wanting to buy either a desktop calendar with all federal and state holidays highlighted or a half-dozen helium filled balloons. 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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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"Try not to become a man of success, but rather try to become a man of value. " -- Albert Einstein
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FAO
Food and Agricultural Organization
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