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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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EXCHANGE RATE

The price of the currency of one country stated in terms of the currency of another country, that is, the rate of exchange of one currency for another. Exchange rates, also termed foreign exchange rates, are prices determined in foreign exchange markets that are set up to trade the currencies of different nations (foreign exchange). In general, exchange rates reflect the overall health, vitality, and productivity of a nation's economy. However, because exchange rates also affect international trade (exports and imports) among nations they are often subject to governmental policy control.

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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 toaster oven that has convection cooking or a birthday gift for your mother. Be on the lookout for celebrities who speak directly to you through your television.
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The New York Stock Exchange was established by a group of investors in New York City in 1817 under a buttonwood tree at the end of a little road named Wall Street.
"The greatest use of life is to spend it for something that will outlast it."

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