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MARKET SHARE: The fraction of an industry's total sales accounted for by a single business. In general, market share is a "first-guess" indicator of a firm's market control. If, for example, a company has a market share of 100 percent (that is, a monopoly), then you can rest assured it has a substantial amount of market control. A company with a 25 percent market share has less, but still notable, market control. In fact, when you get right down to the bottom line, the phrase "market share" is only worth mentioning for oligopolistic firms with a significant degree of market control. There really is no market control for a monopolistically competitive firm with a 0.00000001 percent market share.

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RESOURCE QUANTITY, AGGREGATE SUPPLY DETERMINANT

One of three categories of aggregate supply determinants assumed constant when the short-run and long-run aggregate supply curves are constructed, and which shifts both aggregate supply curves when it changes. An increase in a resource quantity causes an increase (rightward shift) of both aggregate supply curves. A decrease in a resource quantity causes a decrease (leftward shift) of both aggregate supply curves. The other two categories of aggregate supply determinants are resource quality and resource price. Specific determinants falling into this general category include population, labor force participation, capital stock, and exploration. Anything affecting the quantity of labor, capital, land, and entrepreneurship is also included.

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Today, you are likely to spend a great deal of time touring the new suburban shopping complex seeking to buy either any book written by Stephan King or a T-shirt commemorating next Thursday. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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There were no banks in colonial America before the U.S. Revolutionary War. Anyone seeking a loan did so from another individual.
"Never confuse a single defeat with a final defeat."

-- F. Scott Fitzgerald, writer

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