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PERFECT COMPETITION AND SHORT-RUN SUPPLY CURVE: A perfectly competitive firm's supply curve is that portion of its' marginal cost curve that lies above the minimum of the average variable cost curve. A perfectly competitive firm maximizes profit by producing the quantity of output that equates price and marginal cost. As such, the firm moves along it's marginal cost curve in response to alternative prices. Because the marginal cost curve is positively sloped due to the law of diminishing marginal returns, the firm's supply curve is also positively sloped.
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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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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads looking to buy either several magazines on fashion design or a package of 3 by 5 index cards, the ones without lines. Be on the lookout for poorly written technical manuals.
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This isn't me! What am I?
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
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"Think not of yourself as the architect of your career but as the sculptor. Expect to have to do a lot of hard hammering and chiseling and scraping and polishing. " -- B. C. Forbes, founder, Forbes magazine
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CPI-W
Consumer Price Index-Urban Wage Earners and Clerical Workers
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