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TOTAL VARIABLE COST CURVE: A curve that graphically represents the relation between total variable cost incurred by a firm in the short-run production of a good or service and the quantity produced. The marginal cost curve, THE focal point for the analysis of short-run production, can be derived directly from the total variable cost curve. The shape of the total variable cost curve reflects increasing marginal returns at small quantities of output and decreasing marginal returns at later quantities.

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MARKET FAILURES

Imperfections in the exchange process between buyers and sellers that prevent markets from efficiently allocating scarce resources. Market failures come in four varieties -- public goods, market control, externalities, and imperfect information. Market efficiency is achieved if the value of goods produced is equal to the value of foregone production. Markets fail when this efficiency condition is not achieved. Such failures can only be corrected by government intervention.

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Today, you are likely to spend a great deal of time searching the newspaper want ads seeking 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 empty parking spaces that appear to be near the entrance to a store.
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The first paper currency used in North America was pasteboard playing cards "temporarily" authorized as money by the colonial governor of French Canada, awaiting "real money" from France.
"Perhaps the most valuable result of all education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not; it is the first lesson that ought to be learned; and however early a man's training begins, it is probably the last lesson that he learns thoroughly. "

-- Thomas H. Huxley, Scientist

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