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PARETO EFFICIENCY: A type of efficiency that results if one person can not be made better off without making someone else worse off. Named after Vilfredo Pareto, this criterion is the guiding theoretical notion of efficiency used in the study of economics, especially welfare economics. Pareto efficiency is generally not attained if some resources are idle or unemployed. By engaging idle resources in production, some people can have more production without reducing that available to others. A problem with Pareto efficiency, however, is that it is based on the existing distribution of income and wealth. This is one of two noted efficiency criteria used in economics. The other is Kaldor-Hicks efficiency.

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MARGINAL UTILITY

The additional utility obtained from the consumption or use of an additional unit of a good. It is specified as the change in total utility divided by the change in quantity. Marginal utility indicates what each additional unit of a good is worth to a consumer and provides a theoretical basis for understanding market demand and the law of demand. Marginal utility generally declines with increased consumption of a good, a reflection of the law of diminishing marginal utility.

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Today, you are likely to spend a great deal of time flipping through mail order catalogs hoping to buy either an AC adapter for your CD player or storage boxes for your family photos. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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The average bank teller loses about $250 every year.
"Be kind and merciful. Let no one ever come to you without coming away better and happier."

-- Mother Teresa of Calcutta, humanitarian

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