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MARKET EFFICIENCY: The notion that a competitive market automatically achieves an efficient allocation of resources by equating demand price with supply price and quantity demanded with quantity supplied. Market efficiency relies on the self-correction process that eliminates shortages or surpluses. It also presumes that the market is competitive and is not subject to assorted market failures.

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SIGNALLING

When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Signalling is used by those with more information to reduce the cost of informing those with less information. It is commonly used in markets with adverse selection. Methods of signalling include advertising, brand names, and warranties. A related method is screening.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius hoping to buy either any book written by Isaac Asimov or a how-to book on building remote controlled airplanes. Be on the lookout for mail order catalogs with hidden messages.
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Three-forths of the gold mined each year is used to manufacture jewelry.
"Nobody can be successful unless he loves his work. "

-- David Sarnoff, TV pioneer

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Institute for Research on Public Policy
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