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AGGREGATE EXPENDITURE LINE: 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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SHORT-RUN AGGREGATE SUPPLY AND MARKET SUPPLY The short-run aggregate supply curve, or SRAS curve, has similarities to, but differences from, the standard market supply curve. Both are positively sloped. Both relate price and quantity. However, the market supply curve is positively sloped due to the law of diminishing marginal returns and the short-run aggregate supply curve is positively-sloped due to inflexible prices, the pool of natural unemployment, and imbalances in real resource prices.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time strolling through a department store looking to buy either a birthday greeting card for your father or a T-shirt commemorating the first day of spring. Be on the lookout for letters from the Internal Revenue Service.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
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"A leader, once convinced that a particular course of action is the right one, must . . . be undaunted when the going gets tough." -- President Ronald Reagan
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MMSE
Minimun Mean Square Error
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