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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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AVERAGE COST

The opportunity cost incurred per unit of good produced. This is calculated by dividing the cost of production by the quantity of output produced. While average cost is a general term relating cost and the quantity of output, three specific average cost terms are average total cost, average variable cost, and average fixed cost. A related cost term is marginal cost.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius seeking to buy either storage boxes for your summer clothes or 500 feet of coaxial cable. Be on the lookout for gnomes hiding in cypress trees.
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On a typical day, the United States Mint produces over $1 million worth of dimes.
"There's only one corner of the universe you can be certain of improving and that's your own self. "

-- Aldous Huxley, writer

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