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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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PRICE CHANGE, UTILITY ANALYSIS

A disruption of consumer equilibrium identified with utility analysis caused by changes in the price of a good, which likely results in a change in the quantities of the goods consumed. The change in the price alters the marginal utility-price ratio and forces a reevaluation of the rule of consumer equilibrium.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store trying to buy either a birthday gift for your grandfather or a pleather CD case. Be on the lookout for deranged pelicans.
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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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