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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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LOSS MINIMIZATION RULE A rule stating that a firm minimizes economic loss by producing output in the short run that equates marginal revenue and marginal cost if price is less than average total cost but greater than average variable cost. This is one of three short-run production alternatives facing a firm. The other two are profit maximization (if price exceeds average total cost) and shutdown (if price is less than average variable cost).
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time at a flea market looking to buy either 500 feet of telephone cable or a package of 4 by 6 index cards, the ones with lines. Be on the lookout for crowded shopping malls.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
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"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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RJE
RAND Journal of Economics
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