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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 FACTOR COST, PERFECT COMPETITION

The change in total factor cost resulting from a change in the quantity of factor input employed by a perfectly competitive firm. Marginal factor cost, abbreviated MFC, indicates how total factor cost changes with the employment of one more input. It is found by dividing the change in total factor cost by the change in the quantity of input used. Marginal factor cost is compared with marginal revenue product to identify the profit-maximizing quantity of input to hire.

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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time surfing the Internet seeking to buy either handcrafted decorations to hang on your walls or throw pillows for your bed. Be on the lookout for pencil sharpeners with an attitude.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"You can't use up creativity. The more you use, the more you have. "

-- Maya Angelou, poet

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