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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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PRICE LEVEL The average of the prices of goods and services produced in the aggregate economy. In a theoretical sense, the price level is the price of aggregate production. In a practical sense, the price level is commonly measured by either of two price indexes, the Consumer Price Index (CPI) or the GDP price deflator. The CPI is the price index widely publicized in the media and used by the general public. The GDP price deflator, in contrast, is less well-known, but is usually the price index of choice among economists. The inflation rate is calculated as the percentage change in the price level.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors seeking to buy either a wall poster commemorating the first day of winter or blue cotton balls. Be on the lookout for celebrities who speak directly to you through your television.
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This isn't me! What am I?
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
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"Leadership is based on inspiration, not domination; on cooperation, not intimidation. " -- William A. Ward
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NEDO
National Economic Development Office
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