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PERFECT COMPETITION: An ideal market structure characterized by a large number of small firms, identical products sold by all firms, freedom of entry into and exit out of the industry, and perfect knowledge of prices and technology. This is one of four basic market structures. The other three are monopoly, oligopoly, and monopolistic competition. Perfect competition is an idealized market structure that's not observed in the real world. While unrealistic, it does provide an excellent benchmark that can be used to analyze real world market structures. In particular, perfect competition efficiently allocates resources.
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ADVERSE SELECTION An inefficient, bad, or adverse outcome of a market exchange that results because buyers and/or sellers make decisions based on asymmetric information. This commonly results in a market that exchanges a lesser quality good, what is termed the market for lemons. Two related problems resulting from asymmetric information are moral hazard and the principal-agent problem. Two methods of lessoning the problem of adverse selection are signalling and screening.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet looking to buy either galvanized steel storage shelves or a large green chalkboard shaped like the state of Maine. Be on the lookout for poorly written technical manuals.
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A communal society, a prime component of Karl Marx's communist philosophy, was advocated by the Greek philosophy Plato.
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"The only place success comes before work is in the dictionary. " -- Vince Lombardi
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PUT
Put Option
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