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MARGINAL REVENUE, MONOPOLY: The change in total revenue received by a monopoly resulting from a change in the quantity of output sold. For a monopoly firm, marginal revenue is less than the price.

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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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Today, you are likely to spend a great deal of time searching the newspaper want ads wanting to buy either a green fountain pen or a handcrafted bird house. Be on the lookout for telephone calls from long-lost relatives.
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Two and a half gallons of oil are needed to produce one automobile tire.
"Many people think that if they were only in some other place, or had some other job, they would be happy. Well, that is doubtful. So get as much happiness out of what you are doing as you can and don't put off being happy until some future date. "

-- Dale Carnegie

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