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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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GOVERNMENT FAILURES Inefficiencies in the allocation of resources attributable to imperfections in the operation of governments. Government failures are based on the utility-maximizing behavior of politicians, voters, nonvoters, special interest groups, and government employees. The identification and analysis of government failures is central to the study of public choice and offers something of a counterbalance to government actions designed to address the inefficiencies of market failures.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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"Aerodynamically, the bumblebee shouldn't be able to fly, but the bumblebee doesn't know it so it goes on flying anyway. " -- Mary Kay Ash, entrepreneur
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SAS
Statistical Analysis Software
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