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CHANGE IN AGGREGATE EXPENDITURES: The movement along an aggregate demand curve caused by a change in the price level. This should be contrasted directly with a change in aggregate demand. You might also want to review the terms change in quantity demanded and change in demand, as well. A change in aggregate expenditures means that we have identified a NEW level of expenditures on the existing aggregate demand curve. In contrast, a change in aggregate demand means that we have changed, moved, or shifted, the entire aggregate demand curve, the whole range of price levels and aggregate expenditures has changed.
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MARKET STRUCTURE CONTINUUM The four common market structures, perfect competition, monopoly, monopolistic competition, and oligopoly, can be viewed as a continuum based on (1) differences in the number of firms in a market, (2) the relative size of each firm, and thus (3) the market control of each firm. Perfect competition lies at one end and monopoly at the other. Monopolistic competition is close to perfect competition and oligopoly is near monopoly. The essence of the continuum is that monopolistic competition blends into oligopoly, with no clear-cut line of separation.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads trying to buy either a New York Yankees baseball cap or several magazines on home repairs. Be on the lookout for celebrities who speak directly to you through your television.
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This isn't me! What am I?
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
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"And while the law of competition may be sometimes hard for the individual, it is best for the race, because it ensures the survival of the fittest in every department. " -- Andrew Carnegie, entrepreneur
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OLS
Ordinary Least Squares
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