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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.

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MEDIUM OF EXCHANGE

The money function in which money is widely accept in exchange for goods and services. For an asset to function as a medium of exchange it needs value in exchange, but not necessarily value in use. This is one of four basic functions of money. The other three are unit of account, store of value, and standard of deferred payment.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time calling an endless list of 800 numbers seeking to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for poorly written technical manuals.
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Paper money used by the Commonwealth of Massachusetts prior to the U.S. Revolutionary War, which was issued against the dictates of Britain, was designed by patriot and silversmith, Paul Revere.
"Never let the fear of striking out get in your way. "

-- Babe Ruth, baseball player

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