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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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RATIONAL ABSTENTION

The decision NOT to do something (such as vote in an election) because the cost of taking the action is more than the expected benefit. The rational decision to refrain from an endeavor is a straightforward application of utility maximization and along with the related notion of rational ignorance, is a source of voter apathy and government inefficiency.

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APLS

RED AGGRESSERINE
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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors looking to buy either hand lotion, a big bottle of hand lotion or a lighted magnifying glass. Be on the lookout for telephone calls from long-lost relatives.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"In order to create there must be a dynamic force, and what force is more potent than love."

-- Igor Stravinsky, violinist

AIBD
Association of International Bond Dealers (now called International Securities Market Association)
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