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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.
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WHOLESALE PRICE INDEX An index of the prices paid by retail stores for the products they ultimately resell to consumers. The Wholesale Price Index (WPI) was the forerunner of the modern Producer Price Index (PPI) and was discontinued in 1978. Other noted price indexes used to track economic activity are the Consumer Price Index (CPI) and the GDP price deflator.
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Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
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"Always remember that striving and struggle precede success, even in the dictionary. " -- Sarah Ban Breathnach, writer
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FAMS
Forecasting and Modeling System
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