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MARGINAL PROPENSITY TO INVEST: The proportion of each additional dollar of national income that is used for investment expenditures. Or alternatively, this is the change in investment expenditures due to a change in national income. Abbreviated MPI, the marginal propensity to invest is the slope of the investment line used in the analysis of Keynesian economics. As such, it also plays a role in the slope of the aggregate expenditure line and the multiplier effect.

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SELF CORRECTION, RECESSIONARY GAP

The automatic process in which the aggregate market eliminates a recessionary gap created by a short-run equilibrium that is less than full employment through decreases in wages (and other resource prices). The self-correction mechanism is triggered by short-run resource market imbalances that are closed by long-run price flexibility. The self-correction process of the aggregate market also acts to close an inflationary gap with higher wages (and other resource prices).

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GREEN LOGIGUIN
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Today, you are likely to spend a great deal of time at an auction hoping to buy either a pair of handcrafted oven mitts or a coffee table shaped like the state of Florida. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"I don't know the key to success, but the key to failure is trying to please everybody. "

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PPP
Purchasing Power Parity
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