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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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SPECIAL INTEREST GROUPS

A group of people with shared interests who have more to gain or lose from a candidate, issue, or policy and thus try extra hard to ensure that the political system is aware of their preferences. Special interest groups are the other side of the coin of voter apathy. Motivated rational choices, some people have little or no involvement in the political system others have a great deal. The study of public choice indicates that special interest groups are one source of government inefficiency. Other sources are politicians, voters, and government bureaucracies.

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Today, you are likely to spend a great deal of time searching for rummage sales hoping to buy either an instructional DVD on learning to the play the oboe or a small, foam rubber football. Be on the lookout for rusty deck screws.
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Potato chips were invented in 1853 by a irritated chef repeatedly seeking to appease the hard to please Cornelius Vanderbilt who demanded french fried potatoes that were thinner and crisper than normal.
"I believe that every right implies a responsibility, every opportunity, an obligation, every possession, a duty. "

-- John D. Rockefeller, industrialist

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