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HERFINDAHL INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

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MARKET

The organized exchange of commodities (goods, services, or resources) between buyers and sellers within a specific geographic area and during a given period of time. Markets are the exchange between buyers who want a good (the demand-side of the market) and the sellers who have it (the supply-side of the market).

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APLS

BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time touring the new suburban shopping complex looking to buy either a genuine down-filled pillow or one of those "hang in there" kitty cat posters. Be on the lookout for defective microphones.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
"Experience keeps a dear school, but fools will learn in no other. "

-- Benjamin Franklin

MRS
Marginal Rate of Substitution
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