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DIRECT: The mathematical notion that two variables change in the same direction, that is, an increase in X goes with an increase in Y, or a decrease in X goes with a decrease in Y. The alternative to a direct relation is an inverse relation, in which an increase in one variable goes with a decrease in the other. Direct relations are graphically illustrated by positively-sloped curves, a common example being the supply curve.
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MARGINAL PROPENSITY TO INVEST The change in business investment expenditures induced by a change in income or production (national income or gross domestic product). The marginal propensity to invest (abbreviated MPI) is another term for the slope of the investment line and is calculated as the change in investment divided by the change in income or production. The MPI plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part to the multiplier process. A related marginal measure is the marginal propensity to consume.
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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius seeking to buy either a case of blank recordable DVDs or a pair of red goulashes with shiny buckles. Be on the lookout for infected paper cuts.
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Lombard Street is London's equivalent of New York's Wall Street.
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"If football taught me anything about business, it is that you win the game one play at a time." -- Fran Tarkenton, Football Player
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AS
Aggregate Supply
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