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AGGREGATE MARKET EQUILIBRIUM: The state of equilibrium that exists in the aggregate market when real aggregate expenditures are equal to real production with no imbalances to induce changes in the price level or real production. In other words, the opposing forces of aggregate demand (the buyers) and aggregate supply (the sellers) exactly offset each other. The four macroeconomic sector (household, business, government, and foreign) buyers purchase all of the real production that they seek at the existing price level and business-sector producers sell all of the real production that they have at the existing price level. The aggregate market equilibrium actually comes in two forms: (1) long-run equilibrium, in which all three aggregated markets (product, financial, and resource) are in equilibrium and (2) short-run equilibrium, in which the product and financial markets are in equilibrium, but the resource markets are not.
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CONCENTRATION RATIOS A family of measures of the proportion of total output in an industry that is produced by a given number of the largest firms in the industry. The two most common concentration ratios are for the four largest firms and the eight largest firms. The four-firm concentration ratio is the proportion of total output produced by the four largest firms in the industry and the eight-firm concentration ratio is proportion of total output produced by the eight largest firms in the industry. Concentration ratios are commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control of the largest firms in the industry. A related measure is the Herfindahl index.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel trying to buy either 500 feet of coaxial cable or a coffee cup commemorating the 1960 Presidential election. Be on the lookout for gnomes hiding in cypress trees.
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The first "Black Friday" on record, a friday marked by a major financial catastrophe, occurred on September 24, 1869 -- A FRIDAY -- when an attempted cornering of the gold market induced a financial crises and economy-wide depression.
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"It is not the brains that matter most, but that which guides them ‚ the character, the heart, the generous qualities, progressive ideas. " -- Fyodor Dostoyevsky - Writer
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DJ
Dow Jones
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