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VARIABLE: A quantity, usually represented as a symbol, that can take on one of a set of values. Variables play a key role in the scientific method and economic analysis. A major task undertaken by the study of economics is to identify the specific value of variables such as price, quantity, unemployment, production, wages, income, among a host of others. This often accomplished using assorted models, such as the market model.
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BARRIERS TO ENTRY Institutional, government, technological, or economic restrictions on the entry of participants into a market or industry. The four primary barriers to entry are: (1) resource ownership, (2) patents and copyrights, (3) government restrictions, and (2) start-up cost. Barriers to entry are a key reason for market control and the inefficiency that results. 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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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time touring the new suburban shopping complex wanting to buy either a replacement remote control for your television or a replacement nozzle for your shower. Be on the lookout for infected paper cuts.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"No amount of business school training or work experience can teach what is ultimately a matter of personal character. " -- Truett Cathy, Chick-fil-A Inc. founder
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VAR
Vector Autoregression
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