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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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ADVERSE SELECTION An inefficient, bad, or adverse outcome of a market exchange that results because buyers and/or sellers make decisions based on asymmetric information. This commonly results in a market that exchanges a lesser quality good, what is termed the market for lemons. Two related problems resulting from asymmetric information are moral hazard and the principal-agent problem. Two methods of lessoning the problem of adverse selection are signalling and screening.
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PURPLE SMARPHIN [What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway wanting to buy either a package of 3 by 5 index cards, the ones without lines or a blue mechanical pencil. Be on the lookout for attractive cable television service repair people. Your Complete Scope
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Al Capone's business card said he was a used furniture dealer.
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"The time your game is most vulnerable is when you're ahead; never let up. " -- Rod Laver, Tennis player
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JPAM Journal of Policy Analysis and Management
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