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ADJUSTMENT, LONG-RUN AGGREGATE MARKET: Disequilibrium in the long-run aggregate market induces changes in the price level that restore equilibrium. If the price level is above the long-run equilibrium price level, economy-wide product market surpluses cause the price level to fall. If the price level is below the long-run equilibrium price level, economy-wide product market shortages cause the price level to rise. In both cases long-run equilibrium is restored. Price level changes induce changes in aggregate expenditures but NOT changes in real production. The reason is that long-run aggregate supply is full-employment real production, which is unaffected by the price level.
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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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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads hoping to buy either a T-shirt commemorating the first day of winter or software that won't crash your computer. Be on the lookout for slightly overweight pizza delivery guys.
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This isn't me! What am I?
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In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
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"Aerodynamically, the bumblebee shouldn't be able to fly, but the bumblebee doesn't know it so it goes on flying anyway. " -- Mary Kay Ash, entrepreneur
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MPI
Marginal Propensity to Invest
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