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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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PHYSICAL WEALTH, AGGREGATE EXPENDITURES DETERMINANT

One of several specific aggregate expenditures determinants assumed constant when the aggregate expenditures line is constructed, and that shifts the aggregate expenditures line when it changes. A decrease in physical wealth causes an increase (upward shift) of the aggregate expenditures line. An increase in physical wealth causes a decrease (downward shift) of the aggregate expenditures line. Other notable aggregate expenditures determinants include consumer confidence, federal deficit, inflationary expectations, and exchange rates.

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Today, you are likely to spend a great deal of time flipping through the yellow pages trying to buy either a remote controlled World War I bi-plane or a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for malfunctioning pocket calculators.
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The average bank teller loses about $250 every year.
"Motivation is everything. You can do the work of two people, but you can't be two people. Instead, you have to inspire the next guy down the line and get him to inspire his people."

-- Lee Iacocca, Chrysler chairman

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