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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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AGGREGATE DEMAND AND MARKET DEMAND The aggregate demand curve, or AD curve, has similarities to, but differences from, the standard market demand curve. Both are negatively sloped. Both relate price and quantity. However, the market demand curve is negatively sloped because of the income and substitution effects and the aggregate demand curve is negatively sloped because of the real-balance, interest-rate, and net-export effects.
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel looking to buy either a cell phone case or a pair of designer sunglasses. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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There were no banks in colonial America before the U.S. Revolutionary War. Anyone seeking a loan did so from another individual.
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"Enthusiasm is the greatest asset in the world. It beats money and power and influence. It is no more or less than faith in action. " -- Henry Chester, Writer
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IV
Instrumental Variables
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