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AE LINE: Another term for aggregate expenditure line, which is a line representing the relation between aggregate expenditures and gross domestic product used in the Keynesian cross. The aggregate expenditure line is obtained by adding investment expenditures, government purchases, and net exports to the consumption line. As such, the slope of the aggregate expenditure line is largely based on the slope of the consumption line (which is the marginal propensity to consume), with adjustments coming from the marginal propensity to invest, the marginal propensity for government purchases, and the marginal propensity to import. The intersection of the aggregate expenditures line and the 45-degree line identifies the equilibrium level of output in the Keynesian cross.
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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 does not necessarily want everything, the lack of double coincidence of wants is a major obstacle in barter exchanges, especially for complex, modern economies like that fond in the United States. While double coincidence of wants is also essential for exchanges involving money, it is such an inherent trait of money that it is not a problem. By its very nature as a generally accepted medium of exchange, everyone WANTS money.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either a weathervane with a horse on top or a case of blank recordable DVDs. Be on the lookout for malfunctioning pocket calculators.
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During the American Revolution, the price of corn rose 10,000 percent, the price of wheat 14,000 percent, the price of flour 15,000 percent, and the price of beef 33,000 percent.
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"My future starts when I wake up every morning . . . Every day I find something creative to do with my life. " -- Miles Davis, musician
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CLI
Cost of Living Index
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