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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-MARGINAL RELATION A mathematical connection between a marginal value and the corresponding average value stating that the change in the average value depends on a comparison between the average and the marginal. This mathematical relation between average and marginal surfaces throughout the study of economics, especially production (average product and marginal product), cost (average total cost and marginal cost), and revenue (average revenue and marginal revenue). A similar relation is that between a total value and the corresponding marginal value.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time flipping through the yellow pages hoping to buy either a T-shirt commemorating the first day of winter or software that won't crash your computer. Be on the lookout for slightly overweight pizza delivery guys.
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"Every generation of Americans needs to know that freedom exists not in doing what we like, but in having the right to do what we ought. " -- Pope John Paul II
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IMF
International Monetary Found
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