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PERFECT COMPETITION CHARACTERISTICS: The four key characteristics of perfect competition are: (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology. These four characteristics mean that a given perfectly competitive firm is unable to exert any control whatsoever over the market.

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TOTAL REVENUE CURVE, MONOPOLISTIC COMPETITION

A curve that graphically represents the relation between the total revenue received by a monopolistically competitive firm for selling its output and the quantity of output sold. It is combined with the total cost curve to determine economic profit and the profit maximizing level of production. The slope of the total revenue curve is marginal revenue.

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Today, you are likely to spend a great deal of time touring the new suburban shopping complex trying to buy either a set of tires or a birthday gift for your grandfather. Be on the lookout for letters from the Internal Revenue Service.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
"In war, there is no second prize for the runner-up."

-- Omar Bradley, US Army general

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