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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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MARGINAL UTILITY AND DEMAND

An explanation of the law of demand and the negatively-sloped demand curve based on utility analysis and the law of diminishing marginal utility. The law of diminishing marginal utility states that marginal utility declines as consumption increases. Because demand price depends on the marginal utility obtained from a good, price also declines as consumption increases, meaning price and quantity demanded are inversely related, which is the law of demand.

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APLS

PINK FADFLY
[What's This?]

Today, you are likely to spend a great deal of time touring the new suburban shopping complex looking to buy either an ink cartridge for your printer or a rechargeable battery for your camera. Be on the lookout for vindictive digital clocks with revenge on their minds.
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The average length of a "business lunch" is about 36 minutes.
"Never let the fear of striking out get in your way. "

-- Babe Ruth, baseball player

NORC
National Opinion Research Center
A PEDestrian's Guide
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