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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.
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PERFECT COMPETITION, 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 its positively-sloped marginal cost curve in response to changing prices.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time at a crowded estate auction trying to buy either a replacement battery for your pocket calculator or a how-to book on home remodeling. Be on the lookout for infected paper cuts.
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Paper money used by the Commonwealth of Massachusetts prior to the U.S. Revolutionary War, which was issued against the dictates of Britain, was designed by patriot and silversmith, Paul Revere.
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"Nothing is a waste of time if you use the experience wisely. " -- Auguste Rodin, Sculptor
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MSE
Mean Squared Error
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