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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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DISMAL SCIENCE

A term for the study of economics developed during the late 18th and early 19th century when economists concluded that continued population growth would push wages and living standards to a minimal subsistence level and keep them there. It persists to the present time because economics continue to point out that actions result in opportunity cost, that nothing is free, and that eventually society has to pay the price for what it does.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store hoping to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for high interest rates.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
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