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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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FEDERAL RESERVE NOTE: Paper currency issued by each of the 12 Federal Reserve District Banks in denominations of $1, $5, $10, $20, $50, $100. Unlike paper currency of the past that was issued by the U. S. Treasury, these notes are backed by the Federal Reserve System. Specifically, each of the 12 Fed District Banks supplies notes within it's district. Each district bank puts it's own personal number and stamp (literally to the left of the portrait) on the notes it issues. For example, the number for the Boston District Bank is 1, while San Francisco Bank is 12.

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MARKET CONTROL

The ability of buyers or sellers to exert influence over the price or quantity of a good, service, or commodity exchanged in a market. Market control largely depends on the number of competitors on each side of the market. If a market has relatively few buyers, but many sellers, then limited competition on the demand-side of the market means buyers tend to have relatively more market control than sellers. The converse occurs if a market has many buyers, but relatively few sellers. This is also termed market power.

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Today, you are likely to spend a great deal of time looking for a downtown retail store looking to buy either a green and yellow striped sweater vest or a Boston Red Sox baseball cap. Be on the lookout for vindictive digital clocks with revenge on their minds.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
"It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult. "

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