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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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INVESTMENT BUSINESS CYCLES

The notion that business cycles are caused by changes in business sector investment expenditures triggered by the natural ebb and flow of market conditions. This investment explanation of business-cycle instability rests on the proposition that the seeds of each subsequent business-cycle phase are planted during the current phase. An expansion creates the conditions that cause a contraction and a contraction creates the conditions that cause an expansion. This explanation suggests a critical role for government intervention and stabilization policies to correct the business-cycle problems of inflation and unemployment.

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Today, you are likely to spend a great deal of time at a flea market looking to buy either a remote controlled sports car with an air spoiler or semi-gloss photo paper that works with your neighbor's printer. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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ECLA
Economic Commission for Latin America
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