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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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STOCK MARKET: A financial market that trades ownership shares in corporations--corporate stock. The three best known, national stock markets in the United States are the New York Stock Exchange, the American Stock Exchange, and the National Association of Securities Dealers. There are also a few regional markets--the Chicago, Philadelphia, and Pacific exchanges are the most notable that trade stock on a smaller scale. Other countries that use corporations to produce stuff, all of the industrialized ones, also have stock markets. The biggest and most worthy of attention are in Tokyo, London, Toronto, Frankfurt, and Paris. Stock markets play a vital role in our economy, making it possible for businesses to raise the large sums of money needed for investment. See also | financial markets | corporate stock | New York Stock Exchange | American Stock Exchange | National Association of Securities Dealers | Dow Jones averages | Standard & Poor's 500 | NASDAQ |  Recommended Citation:STOCK MARKET, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: March 8, 2026].
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WORLD VIEW An aspect of a scientific theory that includes fundamental, and unverifiable, axioms, beliefs, and values about how the world works. One example of an unverifiable world view axiom is belief in the existence of a supreme, omnipotent, omniscience being--that is, God. Political philosophies, which are essential to economic theories and policies, are intertwined with alternative world views.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
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"If you don't have time to do it right, when will you have time to do it over?" -- John Wooden, Basketball coach
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NBER National Bureau of Economic Research
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