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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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RELATIVELY ELASTIC An elasticity alternative in which relatively small changes in one variable (usually price) cause relatively large changes in another variable (usually quantity). In other words, quantity is very responsive to price. Quantity changes a lot in response to small changes in price. This characterization of elasticity is most important for the price elasticity of demand and the price elasticity of supply. Relatively elastic is one of five elasticity alternatives. The other four are perfectly elastic, perfectly inelastic, relatively inelastic, and unit elastic.
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Lombard Street is London's equivalent of New York's Wall Street.
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"The time your game is most vulnerable is when you're ahead; never let up. " -- Rod Laver, Tennis player
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IIP
Index of Industrial Production
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