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AD VALOREM TAX: A tax that is specified as a percentage of value. Sales, income, and property taxes are three of the more popular ad valorem taxes devised by government. The total ad valorem tax paid increases with the value of what's being taxed.

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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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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors trying to buy either shoe laces for your snow boots or a rim for your spare tire. 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.
"Anyone who has never made a mistake has never tried anything new. "

-- Albert Einstein, physicist

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