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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.
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AVERAGE FACTOR COST CURVE, MONOPSONY A curve that graphically represents the relation between average factor cost incurred by a firm for employing an input and the quantity of input used. Because average factor cost is essentially the price of the input, the average factor cost curve is also the supply curve for the input. The average factor cost curve for a firm with no market control is horizontal. The average factor cost curve for a firm with market control is positively sloped.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"Look at everything as though you were seeing it either for the first or last time. Then your time on earth will be filled with glory." -- Betty Smith, Novelist
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ATO
At The Opening
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