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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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CONGLOMERATE MERGER

The consolidation of two or more separately-owned businesses, operating in separate industries, into a single firm. This is one of three types of mergers. The other two are horizontal merger--two competing firms in the same industry that sell the same products--and vertical merger--two firms in different stages of the production of one good, such that the output of one business is the input of the other.

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Today, you are likely to spend a great deal of time lost in your local discount super center wanting to buy either a bookshelf that will fit in your closet or a birthday greeting card for your grandfather. Be on the lookout for the last item on a shelf.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
"People of mediocre ability sometimes achieve outstanding success because they don't know when to quit. Most men succeed because they are determined to. "

-- George Allen, U.S. senator

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