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LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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TOTAL PHYSICAL PRODUCT The total quantity of output produced by a firm for a given quantity of inputs. Total physical product is actually nothing more than total product. The insertion of the word "physical" merely keeps the phrase consistent with average physical product and marginal physical product, two terms useful in marginal-productivity theory and the analysis of factor demand.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time wandering around the downtown area seeking to buy either a small, foam rubber football or an instructional DVD on learning to the play the oboe. Be on the lookout for fairy dust that tastes like salt.
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"Adversity is another way to measure the greatness of individuals. I never had a crisis that didn't make me stronger. " -- Lou Holtz, Football Coach
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FX
Foreign Exchange
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