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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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CLASSICAL ECONOMICS A theory of economics, especially directed toward macroeconomics, based on the unrestricted workings of markets and the pursuit of individual self interests. Classical economics relies on three key assumptions--flexible prices, Say's law, and saving-investment equality--in the analysis of macroeconomics. The primary implications of this theory are that markets automatically achieve equilibrium and in so doing maintain full employment of resources without the need for government intervention. Classical economics emerged from the foundations laid by Adam Smith in his book An Inquiry into the Nature and Causes of the Wealth of Nations, published in 1776. Although it fell out of favor in the 1930s, many classical principles remain important to modern macroeconomic theories, especially aggregate market (AS-AD) analysis, rational expectations theory, and supply-side economics.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway trying to buy either a wall poster commemorating next Thursday or a pair of gray heavy duty boot socks. Be on the lookout for celebrities who speak directly to you through your television.
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Two and a half gallons of oil are needed to produce one automobile tire.
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"Genius is an infinite capacity for taking pains. " -- Jane Ellis Hopkins, writer
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MC
Marginal Cost
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