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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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CHANGE IN AGGREGATE SUPPLY

A shift of the short-run or long-run aggregate supply curve caused by a change in one of the aggregate supply determinants. In essence, a change in aggregate supply is caused by any factor affecting supply EXCEPT the price level. This is one of two changes related to aggregate supply. The other is a change in real production. A change in aggregate supply is comparable to a change in market supply.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius wanting to buy either a coffee cup commemorating the 1960 Presidential election or a how-to book on fixing your computer, with illustrations. Be on the lookout for pencil sharpeners with an attitude.
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In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
"I believe that every right implies a responsibility, every opportunity, an obligation, every possession, a duty. "

-- John D. Rockefeller, industrialist

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