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INDIRECT: The mathematical notion that two variables change in the opposite directions, that is, an increase in X goes with a decrease in Y, or a decrease in X goes with an increase in Y. The alternative to an indirect relation is a direct relation, in which an increase in one variable goes with an increase in the other. Indirect relations are graphically illustrated by negatively-sloped curves, a common example being the demand curve.

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HERFINDAHL INDEX

A measure of concentration of the production in an industry calculated as the sum of the squares of market shares for each firm. This is one method of summarizing the degree to which an industry is oligopolistic and the concentration of market control held by the largest firms in the industry. Two other measures of industry concentration are the four-firm concentration ratio and the eight-firm concentration ratio.

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Today, you are likely to spend a great deal of time searching for a specialty store seeking to buy either a printer that works with your stockpile of ink cartridges or income tax software. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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The average length of a "business lunch" is about 36 minutes.
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