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PERFECT COMPETITION AND EFFICIENCY: Perfect competition is the idealized market structure that achieves an efficient allocation of resources. The conditions of perfect competition, including (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology, ensure that perfect competition efficiently allocates resources. This is in fact the purpose of perfect competition: a market structure that illustrates perfection, the best of all possible resource allocation worlds. The real world falls short of this perfection.

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UTILITY ANALYSIS

A subset of consumer demand theory that analysis consumer behavior and market demand using total utility and marginal utility. The key principle of utility analysis is the law of diminishing marginal utility, which offers an explanation for the law of demand and the negative slope of the demand curve.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store wanting to buy either a stretchable, flexible watch band or high-gloss photo paper that works with your printer. Be on the lookout for defective microphones.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"When we do the best we can, we never know what miracle is wrought in our life or in the life of another. "

-- Helen Keller, lecturer, author

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Tokyo Grain Exchange (Japan)
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