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MARGINAL REVENUE, PERFECT COMPETITION: The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.
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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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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs wanting to buy either a 50 foot extension cord or a combination CD player, clock radio, and telephone (with answering machine). Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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Al Capone's business card said he was a used furniture dealer.
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"A genius is a talented person who does his homework." -- Thomas Edison
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DSE
Detroit Stock Exchange
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