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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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VARIABLE INPUT An input whose quantity can be changed in the time period under consideration. The most common example of a variable input is labor. Variable inputs provide the means used by a firm to control short-run production. The alternative to variable input is fixed input. A fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive, which is the law of diminishing marginal returns.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a crowded estate auction wanting to buy either a large red and white striped beach towel or a bottle of blackcherry flavored spring water. Be on the lookout for telephone calls from former employers.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
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"Do something wonderful; people may imitate it. " -- Albert Schweitzer, theologian, physician
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AOM
Australian Options Market
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