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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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GOVERNMENT PURCHASES Expenditures made by the government sector on final goods and services, or gross domestic product. Government purchases are used to buy the goods and services needed to operate the government (such as administrative salaries) and to provide public goods (including national defense, highway construction). These purchases are one of two major categories of government spending, the other is transfer payments. Government purchases are financed by a mix of taxes and borrowing and are categorized by the three levels of government: federal, state, and local governments. These are one of four expenditures on gross domestic product. The other three are consumption expenditures, investment expenditures, and net exports.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway hoping to buy either an AC adapter that works with your MPG player or rechargeable batteries. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?
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On a typical day, the United States Mint produces over $1 million worth of dimes.
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"The secret of getting ahead is getting started. The secret of getting started is breaking your complex, overwhelming tasks into small manageable tasks, and then starting on the first one. " -- Mark Twain, writer
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ARIMA
Autoregressive Integrated Moving Average
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