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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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MARGINAL COST CURVE

A curve that graphically represents the relation between the marginal cost incurred by a firm in the short-run product of a good or service and the quantity of output produced. This curve is constructed to capture the relation between marginal cost and the level of output, holding other variables like technology and resource prices constant. Three related curves are average total cost curve, average variable cost curve, and average fixed cost curve.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time wandering around the shopping mall seeking to buy either a flower arrangement in a coffee cup for your father or a how-to book on meeting people. Be on the lookout for broken fingernail clippers.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"To succeed you need to find something to hold on to, something to motivate you, something to inspire you."

-- Tony Dorsett, Football player

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