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KEYNESIAN EQUILIBRIUM: The state of the macroeconomy in which aggregate expenditures are equal to aggregate output. This is illustrated using the income-expenditure model, or Keynesian cross, as the intersection of the aggregate expenditures line and the 45-degree line. The aggregate expenditures line is the summation of consumption expenditures, investment expenditures, government purchases, and net exports. The 45-degree line represents all combinations in which aggregate expenditures equal aggregate output. Keynesian equilibrium is also represented by the saving-investment, or injection-leakage, model as the intersection between the injection line (investment expenditures, government purchases, and exports) and the leakage line (saving, taxes, and imports).
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DEADWEIGHT LOSS The decrease in the sum of consumer surplus and producer surplus that results from the imposition of a tax. When a tax drives a wedge between demand price and supply price it disrupts what otherwise would be an efficient market equilibrium. Inefficiency arises because while a portion of the sum of consumer and producer surplus is merely transferred to government, a portion of this sum also disappears. The part that disappears is the deadweight loss and is an indicator of the inefficiency of the tax.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs looking to buy either a country wreathe or galvanized steel storage shelves. Be on the lookout for slightly overweight pizza delivery guys.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult. " -- Seneca, statesman, dramatist, philosopher
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NLS
National Longitudinal Survey
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