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POLICY LAGS: A series of lags between the onset of an economic problem, such as business-cycle contraction, and the full impact of the policy designed to correct the problem, such as expansionary fiscal or monetary policy. Policy lags can take several years and are one of the key arguments against discretionary policies and for reliance on self correction and automatic stabilizers. Policy lags are often divided into inside lags, the time between the shock and the corrective policy, and outside lags, the time between the corrective policy and full impact on the economy.
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AGGREGATE EXPENDITURES LINE A graphical depiction of the relation between aggregate expenditures by the four macroeconomic sectors (household, business, government, and foreign) and the level of aggregate income or production. In Keynesian economics, the aggregate expenditures line is the essential component of the Keynesian cross analysis used to identify equilibrium income and production. Like any straight line, the aggregate expenditures line is characterized by vertical intercept, which indicates autonomous expenditures, and slope, which indicates induced expenditures. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking investment, government purchases, and net exports to the consumption line.
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
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"The art of leadership is saying no, not yes. It is very easy to say yes. " -- Tony Blair, British prime minister
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MRS
Marginal Rate of Substitution
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