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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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LAISSEZ FAIRE

The notion that government should not intervene into production, consumption, and exchange activities and that the private sector (households and businesses) should be free to make allocation decisions. Laissez faire is a French term that roughly translates into "allow to act." It has been the rallying cry for many people (primarily business leaders) who oppose government intervention, regulation, or even taxation since it was popularized in the late 1700s by Adam Smith in The Wealth of Nations.

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Today, you are likely to spend a great deal of time looking for a downtown retail store trying to buy either one of those memory foam pillows or a remote controlled train set. Be on the lookout for poorly written technical manuals.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Every time you win, it diminishes the fear a little bit. You never really cancel the fear of losing; you keep challenging it. "

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LRAC
Long Run Average Cost
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