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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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INSURANCE

A service that transfers the risk of loss from an individual to a larger group. The larger group is typically represented by an insurance provider, either a private for-profit company or a government agency. The insurance provider can assume the risk through risk pooling. Risk averse people, who are willing to pay a premium to avoid risk, are the ones most inclined to purchase insurance. The risk averse individual agrees to incur a small guaranteed loss (the premium) but avoids incurring a less likely, but much bigger, loss.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club trying to buy either a set of serrated steak knives, with durable plastic handles or a pair of blue silicon oven mitts. Be on the lookout for malfunctioning pocket calculators.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"Kites rise highest against the wind, not with it. "

-- Winston Churchill, British prime minister

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