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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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VALUE

The worth members of society place on a good, service, resource, commodity, or other asset, which is based on the direct or indirect satisfaction of wants and needs generated. In an economy that uses markets to exchange commodities, value is commonly indicated by price and measured by the economy's monetary unit.

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Today, you are likely to spend a great deal of time wandering around the downtown area hoping to buy either a coffee table shaped like the state of Florida or storage boxes for your summer clothes. Be on the lookout for door-to-door salesmen.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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