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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.
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AGGREGATE MARKET SHOCKS Disruptions of the equilibrium in the aggregate market (or AS-AD model) caused by shifts of the aggregate demand, short-run aggregate supply, or long-run aggregate supply curves. Shocks of the aggregate market are associated with, and thus used to analyze, assorted macroeconomic phenomena such as business cycles, unemployment, inflation, stabilization policies, and economic growth. The specific analysis of aggregate market shocks identifies changes in the price level (GDP price deflator) and real production (real GDP). Changes in the price level and real production have direct implications for the unemployment rate, the inflation rate, national income, and a host of other macroeconomic measures.
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius hoping to buy either a large, stuffed giraffe or a birthday greeting card for your aunt. Be on the lookout for telephone calls from long-lost relatives.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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"The past cannot be changed. The future is yet in your power. " -- Hugh White, U.S. Senator
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OCC
Office of the Comptroller of the Currency
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