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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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MONEY FUNCTIONS

Any item used as money in an economy automatically takes on four basic functions: (1) medium of exchange, (2) unit of account, (3) store of value, and (4) standard of deferred payment. While "buying and selling" means that money is THE medium of exchange, and by far THE most important function of money, money also performs unit of account, store of value, and standard of deferred payment functions.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway looking to buy either hand lotion, a big bottle of hand lotion or a lighted magnifying glass. Be on the lookout for celebrities who speak directly to you through your television.
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North Carolina supplied all the domestic gold coined for currency by the U.S. Mint in Philadelphia until 1828.
"Leadership is the art of getting someone else to do something you want done because he wants to do it."

-- Dwight Eisenhower, 34th US president

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