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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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SCREENING

When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Screening occurs when those with limited information try to identify indicators suggesting more complete information. It is used in markets with adverse selection and moral hazard, especially in labor markets and in the provision of insurance. Common methods of screening include aptitude tests, affiliations, past behavior, and personal characteristics. A related method is signalling.

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APLS

RED AGGRESSERINE
[What's This?]

Today, you are likely to spend a great deal of time at a crowded estate auction wanting to buy either a wall poster commemorating the moon landing or storage boxes for your winter clothes. Be on the lookout for rusty deck screws.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
"How we spend our days is, of course, how we spend our lives. "

-- Annie Dillard, essayist

MPP
Marginal Physical Product
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