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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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PRICE INDEX A measure of the average of a group of prices calculated as a ratio to prices in a given time period (that is, a base year). A price index is primarily used to compare relative prices, or changes in the group prices over time. Such an index is a handy indicator of overall price trends. Two common price indexes that surface in the study of macroeconomics are the Consumer Price Index (CPI) and the GDP price deflator. Both are used to indicate the macroeconomy's average price level and to estimate the inflation rate. The Dow Jones Industrial Average (the Dow), Standard & Poor's 500, and the NASDAQ are well-known indexes of stock market prices.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time looking for a downtown retail store trying to buy either a case of blank recordable DVDs or a pair of red goulashes with shiny buckles. Be on the lookout for slightly overweight pizza delivery guys.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
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"The greatest things ever done on Earth have been done little by little. " -- William Jennings Bryan
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ASX
Australian Stock Exchange
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