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OLIGOPOLY: A market structure dominated by a small number of large firms, selling either identical or differentiated products, and significant barriers to entry into the industry. This is one of four basic market structures. The other three are perfect competition, monopoly, and monopolistic competition.

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MARGINAL COST OF SEARCH

The incremental cost incurred by additional search effort is the marginal cost of search. Marginal cost of search, also termed marginal search cost, is comparable to marginal cost of short-run production analysis. Marginal cost of search increases with an increase in search effort and is represented by the marginal cost of search curve. This is one half of the efficient information search decision. The other is marginal benefit of search.

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Today, you are likely to spend a great deal of time at the confiscated property police auction looking to buy either storage boxes for your summer clothes or 500 feet of coaxial cable. Be on the lookout for poorly written technical manuals.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"There's a very positive relationship between people's ability to accomplish any task and the time they're willing to spend on it."

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Weak Axiom of Profit Maximization
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