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ENTRY BARRIER: An institutional, government, technological, or economic restriction 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 FACTOR COST, MONOPSONY

The change in total factor cost resulting from a change in the quantity of factor input employed by a monopsony. Marginal factor cost, abbreviated MFC, indicates how total factor cost changes with the employment of one more input. It is found by dividing the change in total factor cost by the change in the quantity of input used. Marginal factor cost is compared with marginal revenue product to identify the profit-maximizing quantity of input to hire.

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APLS

ORANGE REBELOON
[What's This?]

Today, you are likely to spend a great deal of time browsing through a long list of dot com websites wanting to buy either a birthday gift for your grandfather or a pleather CD case. Be on the lookout for fairy dust that tastes like salt.
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In the early 1900s around 300 automobile companies operated in the United States.
"Enthusiasm is the greatest asset in the world. It beats money and power and influence. It is no more or less than faith in action. "

-- Henry Chester, Writer

PIH
Permanent Income Hypothesis
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