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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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MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time at a dollar discount store looking to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for rusty deck screws.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
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"So many of our dreams at first seem impossible, then they seem improbable, and then when we summon the will, they soon become inevitable." -- Christopher Reeve, Actor
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IBF
International Banking Facility
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