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REALISM OF PERFECT COMPETITION: Perfect competition is an idealized market structure that does NOT exist in the real world. While some real world industries might come relatively close to a one or two of the four key characteristics of perfect competition, none matches all four sufficiently that we can declare a perfectly competitively industry. Some industries come close on the large number of small firms and the identical product characteristics. A few industries have relatively good, although not perfect, information about prices and technology. However, almost all industries fall far short of the perfect mobility characteristics.

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SELLERS' EXPECTATIONS, SUPPLY DETERMINANT

The expectations that sellers have concerning the future price of a good, which is assumed constant when a supply curve is constructed. If sellers expect a higher price, then supply decreases. If sellers expect a lower price, then supply increases. Sellers' expectations are one of five supply determinants that shift the supply curve when they change. The other four are resource prices, production technology, other prices, and number of sellers.

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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 T-shirt commemorating the first day of winter or software that won't crash your computer. Be on the lookout for small children selling products door-to-door.
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This isn't me! What am I?

The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
"Look at the abundance all around you as you go about your daily business. You have as much right to this abundance as any other living creature. It's yours for the asking."

-- Earl Nightingale

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