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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.

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TOTAL VARIABLE COST CURVE

A curve that graphically represents the relation between total variable cost incurred by a firm in the short-run production of a good or service and the quantity produced. When constructing this curve, it is assumed that total variable cost changes as a result of changes in the quantity of output produced, while other variables like technology and resource prices are held fixed. The total variable cost curve is one of three total cost curves, the other two are total cost curve and total fixed cost curve.

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Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either a large, stuffed kitty cat or a cross-cut paper shredder. 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.
"Anyone who has never made a mistake has never tried anything new. "

-- Albert Einstein, physicist

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