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HOTELLING'S RULE: The notion that efficiency and competitive market forces will lead to an increase of scarcity rent of a finite, exhaustible resource that is equal to the interest rate. The logic behind Hotelling's Rule is that as a finite fossil fuel is depleted, less is available in the future, causing scarcity rent, and thus the resource price, to increase. An increase in the resource price reduces the quantity demanded and conserves more for future consumption. When finite, exhaustible resource markets are competitive, this process generates an efficient allocation over time.
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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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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a flower arrangement for your aunt or a birthday greeting card for your uncle. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
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"The time to repair the roof is when the sun is shining." -- John F. Kennedy, 35th U. S. president
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AMB
Adjusted Monetary Base
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