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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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AUTONOMOUS NET EXPORTS

Net exports by the foreign sector that do not depend on income or production (especially national income or gross domestic product). That is, changes in income do not generate changes in net exports. Autonomous net exports are best thought of as net exports that the foreign sector undertakes independent of income. They are measured by the intercept term of the net exports line. The alternative to autonomous net exports is induced net exports, which do depend on income.

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Today, you are likely to spend a great deal of time watching the shopping channel trying to buy either income tax software or a how-to book on the art of negotiation. Be on the lookout for celebrities who speak directly to you through your television.
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
"Chance favors only the prepared mind."

-- Louis Pasteur, biologist

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Journal of Political Economy
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