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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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FALLACY OF DIVISION

The logical fallacy of arguing that what is true for the whole is also true for the parts. In the study of economics, this takes the form of assuming that what works for the aggregate, or macroeconomy, also works for parts of the economy, such as households or businesses. The contrasting fallacy is the fallacy of composition.

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Today, you are likely to spend a great deal of time at the confiscated property police auction looking to buy either a replacement battery for your pocket calculator or a how-to book on home remodeling. Be on the lookout for telephone calls from former employers.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
"There are two big forces at work, external and internal. We have very little control over external forces such as tornadoes, earthquakes, floods, disasters, illness and pain."

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ANOVA
Analysis of Variance
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