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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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AGGREGATE SUPPLY INCREASE, SHORT-RUN AGGREGATE MARKET

A shock to the short-run aggregate market caused by an increase in aggregate supply, resulting in and illustrated by a rightward shift of the short-run aggregate supply curve. An increase in aggregate supply in the short-run aggregate market results in a decrease in the price level and an increase in real production. The level of real production resulting from the shock can be greater or less than full-employment real production.

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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time at a going out of business sale seeking to buy either a T-shirt commemorating the first day of winter or software that won't crash your computer. Be on the lookout for slightly overweight pizza delivery guys.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
"When one door closes another door opens; but we do often look so long and so regretfully upon the closed door, that we do not see the ones which open for us. "

-- Alexander Graham Bell, inventor

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