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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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AGGREGATE EXPENDITURES LINE A graphical depiction of the relation between aggregate expenditures by the four macroeconomic sectors (household, business, government, and foreign) and the level of aggregate income or production. In Keynesian economics, the aggregate expenditures line is the essential component of the Keynesian cross analysis used to identify equilibrium income and production. Like any straight line, the aggregate expenditures line is characterized by vertical intercept, which indicates autonomous expenditures, and slope, which indicates induced expenditures. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking investment, government purchases, and net exports to the consumption line.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center trying to buy either a set of luggage with wheels or a birthday gift for your aunt. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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A half gallon milk jug holds about $50 in pennies.
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"If football taught me anything about business, it is that you win the game one play at a time." -- Fran Tarkenton, Football Player
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AR(N)
A nth-order Autoregressive Process
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