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HHI: The common abbreviation for the Herfindahl-Hirshman index (or the Herfindahl index), which is 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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M1

The narrow-range monetary aggregate for the U.S. economy containing the combination of currency (and coins) issued by government and held by the nonbank public and checkable deposits issued by banking institutions. M1 contains the two items that function as THE medium of exchange for the U.S. economy. M1 is one of three monetary aggregates tracked and reported by the Federal Reserve System. The other two are designated M2 and M3.

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Today, you are likely to spend a great deal of time at a flea market hoping to buy either a 50 foot extension cord or a combination CD player, clock radio, and telephone (with answering machine). Be on the lookout for slightly overweight pizza delivery guys.
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John Maynard Keynes was born the same year Karl Marx died.
"Divide each difficulty into as many parts as is feasible and necessary to resolve it."

-- Rene Descartes

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