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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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AVERAGE REVENUE, MONOPOLISTIC COMPETITION

The revenue received for selling a good per unit of output sold, found by dividing total revenue by the quantity of output. Average revenue often goes by a simpler and more widely used term... price. For a monopolistically competitive firm average revenue is greater than marginal revenue. Average revenue for a monopolistically competitive firm is often depicted by a negatively-sloped average revenue curve.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time at a crowded estate auction seeking to buy either a flower arrangement for that special day for your mother or a New York Yankees baseball cap. Be on the lookout for the happiest person in the room.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
"If I'm selecting a group, the first thing I look for is a record of achievement . . . If (candidates achieve) in small things, there's a very good chance they'll perform well in big things. "

-- Edmund Hillary, explorer

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