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COMPETITION AMONG THE FEW: A market with a small number of sellers (or buyers), such that each seller (or buyer) has some degree of market control. Many think of this type of competition when the term competition arises (the other type is competition among the many). This sort of competition leads to intense rivalry where each participant achieves their objective only by beating the others. I call this track-meet competition. In a track race among a handful of competitors, like a 100 meter sprint, the winner is the fastest of THIS GROUP.

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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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Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for letters from the Internal Revenue Service.
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
"You don't have to see the top of the staircase to take the first step.¾ "

-- Martin Luther King, civil rights leader

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