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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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ASSUMPTIONS, KEYNESIAN ECONOMICS The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.
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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time at the confiscated property police auction wanting 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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A scripophilist is one who collects rare stock and bond certificates, usually from extinct companies.
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"A people that values its privileges above its principles soon loses both. " -- Dwight Eisenhower, 34th US president
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AEA
American Economic Association
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