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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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TAX EFFICIENCY Taxes, mandatory payments used to finance government operations, inherently disrupt the allocation of resources. This disruption might be good, correcting an otherwise inefficient allocation caused by pollution or market control. However, for an already efficiency allocation, a tax creates and inefficient wedge between the demand price and the supply price. This tax is generally paid partially by buyers and partially by sellers, which the tax incidence. Inefficiency arises because a tax reduces the total amount of consumer surplus and producer surplus, which is deadweight loss.
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PURPLE SMARPHIN [What's This?]
Today, you are likely to spend a great deal of time strolling through a department store looking to buy either a battery-powered, rechargeable vacuum cleaner or a remote controlled World War I bi-plane. Be on the lookout for empty parking spaces that appear to be near the entrance to a store. Your Complete Scope
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
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"The purpose of learning is growth, and our minds, unlike our bodies, can continue growing as long as we live." -- Mortimer Adler
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LCH Life Cycle Hypothesis
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