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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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IMPLEMENTATION LAG

The time lag that occurs after a government policy designed to correct an economic problem has been selected and the actual execution of the policy. The implementation lag is based the time it takes for government agencies, which can be slow and methodical, to carry out the designated policy. This "inside lag" is one of four policy lags associated with monetary and fiscal policy. The other two "inside lags" are recognition lag and decision lag, and one "outside lag" is implementation lag. All four policy lags can reduce the effectiveness of business-cycle stabilization policies and can even destabilize the economy.

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Today, you are likely to spend a great deal of time at the confiscated property police auction trying to buy either storage boxes for your family photos or a large, stuffed giraffe. Be on the lookout for strangers with large satchels of used undergarments.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"I think luck is the sense to recognize an opportunity and the ability to take advantage of it . The man who can smile at his breaks and grabs his chance gets on."

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QLR
Quasi-Likelihood Ratio
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