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CHANGE IN REAL PRODUCTION: The movement along the short-run or long-run aggregate supply curve caused by a change in the price level. This should be contrasted directly with a change in aggregate supply. You might also want to review the terms change in quantity supplied and change in supply, as well. A change in real production for short-run aggregate supply actually means real production changes with a movement along a given SRAS. However, a "change in real production" for long-run aggregate supply really refers to a movement along a given LRAS curve and doesn't actually involve a change in production. A change in real production means that we have identified a NEW price level-real production combination on the existing aggregate supply curve. In contrast, a change in aggregate supply means that we have changed, moved, or shifted, the entire aggregate supply curve, the whole range of price levels and real production amounts has changed.
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ARC ELASTICITY The average elasticity for discrete changes in two variables. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of initial and ending values of each variable, rather than initial values. Arc elasticity is generally calculated using the midpoint elasticity formula. The contrast to arc elasticity is point elasticity. For infinitesimally small changes in two variables, arc elasticity is the same as point elasticity.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time watching infomercials seeking to buy either a dozen high trajectory optic orange golf balls or a large red and white striped beach towel. Be on the lookout for neighborhood pets, especially belligerent parrots.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"Try not to become a man of success, but rather try to become a man of value. " -- Albert Einstein
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SRO
Self-regulatory Organizations
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