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AMEX: The common abbreviation for the American Stock Exchange, which is one of three national stock markets in the United States (see National Association of Securities Dealers and New York Stock Exchange) that trade ownership shares in corporations. In terms of daily stock transactions and the number of stocks listed, the American Stock Exchange is the smallest of these three. However, it's composite index of stock prices -- AMEX is considered important enough to be flashed briefly on the nightly news.

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Lesson 19: Monopolistic Competition | Unit 4: Analysis Page: 15 of 22

Topic: Profit, Loss, And Supply <=PAGE BACK | PAGE NEXT=>

  • Similarities between monopolistic competition and other market structures.

    • Profit and Loss: Like any firm in any market structure, the monopolistic competitive firm is not guaranteed an economic profit in the short run.

    • Short-run Supply: The short-run supply curve for a firm in perfect competition is that portion of the marginal cost curve above the average variable cost curve. In contrast, there is no comparable short-run supply curve for monopoly.


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RESOURCE QUALITY, AGGREGATE SUPPLY DETERMINANT

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

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Today, you are likely to spend a great deal of time wandering around the downtown area hoping to buy either a wall poster commemorating the 2000 Olympics or a flower arrangement with a lot of roses for your grandmother. Be on the lookout for neighborhood pets, especially belligerent parrots.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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