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October 31, 2014 

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AGGREGATE DEMAND DETERMINANTS: An assortment of ceteris paribus factors that affect aggregate demand, but which are assumed constant when the aggregate demand curve is constructed. Changes in any of the aggregate demand determinants cause the aggregate demand curve to shift. While a wide variety of specific ceteris paribus factors can cause the aggregate demand curve to shift, it's usually most convenient to group them into the four, broad expenditure categories -- consumption, investment, government purchases, and net exports. The reason is that changes in these expenditures are the direct cause of shifts in the aggregate demand curve. If any determinant affects aggregate demand it MUST affect one of these four expenditures.

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DOUBLE COINCIDENCE OF WANTS: The requirements of a barter exchange that each trader has want the other wants and wants what the other has. Because everyone doesn't necessarily want everything, the lack of double coincidence of wants is a major obstacle in barter exchanges, especially for complex, modern economies. While double coincidence of wants is also essential for exchanges involving money, it's such an inherent trait of money we don't think twice about it. By its very nature as a generally accepted medium of exchange, everyone WANTS money.

     See also | barter | barter exchange | barter economy | money | money functions | medium of exchange |


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DOUBLE COINCIDENCE OF WANTS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2014. [Accessed: October 31, 2014].


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PERFECT COMPETITION

An ideal market structure characterized by a large number of small firms, identical products sold by all firms, freedom of entry into and exit out of the industry, and perfect knowledge of prices and technology. This is one of four basic market structures. The other three are monopoly, oligopoly, and monopolistic competition. Perfect competition is an idealized market structure that is not observed in the real world. While unrealistic, it does provide an excellent benchmark that can be used to analyze real world market structures. In particular, perfect competition efficiently allocates resources.

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APLS

State of the ECONOMY

Consumer Price Index W
June 2014
234.702
Up minimally in 1 month Source: B L S

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BLACK DISMALAPOD
[What's This?]

Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either a large, stuffed kitty cat or a cross-cut paper shredder. Be on the lookout for letters from the Internal Revenue Service.
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Two and a half gallons of oil are needed to produce one automobile tire.
"Anyone who has never made a mistake has never tried anything new. "

-- Albert Einstein, physicist

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