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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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SEASONAL UNEMPLOYMENT

Unemployment attributable to relatively regular and predictable declines in particular industries or occupations over the course of a year, often corresponding with the climatic seasons. Unlike cyclical unemployment, which may or may not occur at any given time, seasonal unemployment is an essential part of many jobs. For example, a regular, run-of-the-mill, department store Santa Clause can count on 11 months of unemployment each year. Seasonal unemployment is one of four unemployment sources. The other three are cyclical unemployment, frictional unemployment, and structural unemployment.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors seeking to buy either a 50 foot extension cord or a combination CD player, clock radio, and telephone (with answering machine). Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
"Be willing to have it so. Acceptance of what has happened is the first step to overcoming the consequences of any misfortune."

-- William James, Psychologist

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Tokyo Interbank Offered Rate (Japan)
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