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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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LONG-RUN PRODUCTION ANALYSIS

An analysis of the production decision made by a firm in the long run. The central characteristic of long-run production analysis is that all inputs under the control of the firm are variable. The central principle guiding production in the long run is returns to scale, which indicates how production responds to proportional changes in all inputs. A contrasting analysis is short-run production analysis.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club seeking to buy either a brown leather attache case or car battery jumper cables. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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Junk bonds are so called because they have a better than 50% chance of default, carrying a Standard & Poor's rating of CC or lower.
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