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PARETO IMPROVEMENT: Based on the Pareto efficiency criterion, the notion that an action improves efficiency if it is possible for one person to benefit without anyone else being harmed. A Pareto improvement is possible if the economy has idle resources or market failures. With idle resources, more production is possible to help some without hurting others. With market failures, corrective actions can eliminate deadweight loss that can then be use for benefits economy-wide. A contrasting condition for attaining efficiency is the Kaldor-Hicks improvement.

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MARKET FOR LEMONS

A market adversely selects only lower quality products for exchange. The market for lemons is an illustration of adverse selection that results from asymmetric information. In this market, because buyers have limited information they offer an average price based on the average quality of the goods. Sellers, however, with better information select to sell lower quality products but not higher quality ones. Two methods of address this problem are signalling and screening. Two related information problems are moral hazard and the principal-agent problem.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius wanting to buy either a flower arrangement in a coffee cup for your father or a how-to book on meeting people. Be on the lookout for defective microphones.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
"Managing intellectual assets has become the single most important task of business. "

-- Thomas Stewart, author

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