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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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PRODUCTION TIME PERIODS

Alternative time periods used to differentiate between variable inputs and fixed inputs that are key to the analysis of short-run production and long-run production by a firm. The two primary time periods are short run and long run. Two secondary periods are very short run (market period) and very long run. Time periods are specified based on the number of inputs that are fixed or variable.

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PINK FADFLY
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Today, you are likely to spend a great deal of time at a garage sale wanting to buy either a hepa filter for your furnace or a wall poster commemorating next Thursday. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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A half gallon milk jug holds about $50 in pennies.
"It is not the mountain we conquer, but ourselves. "

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