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HERFINDAHL-HIRSHMAN 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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SEVEN ECONOMIC RULES

A set of seven fundamental notions that reflect the study of economics and how the economy operates. They are: (1) scarcity, (2) subjectivity, (3) inequality, (4) competition, (5) imperfection, (6) ignorance, and (7) complexity.

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Today, you are likely to spend a great deal of time at a dollar discount store trying to buy either a how-to book on surfing the Internet or a computer that can play music and burn CDs. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
"Many people think that if they were only in some other place, or had some other job, they would be happy. Well, that is doubtful. So get as much happiness out of what you are doing as you can and don't put off being happy until some future date. "

-- Dale Carnegie

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