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UNDERGROUND ECONOMY: Illegal and unreported market transactions and productive activity that escape the watchful eyes of official record keepers. By most estimates, a substantial amount of productive activity takes place in the underground economy for the United States. Of course, these are only estimates because such activity, by definition, goes unreported. Were activity in the underground economy added to official activity in the "overground" economy, then gross domestic product could be boosted by as much as 25% to 50%, or more.

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MARGINAL FACTOR COST

The change in total factor cost resulting from a change in the quantity of factor input employed by a 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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Today, you are likely to spend a great deal of time at a flea market looking to buy either a genuine down-filled snow parka or throw pillows for your living room sofa. Be on the lookout for attractive cable television service repair people.
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Post WWI induced hyperinflation in German in the early 1900s raised prices by 726 million times from 1918 to 1923.
"One worthwhile task carried to a successful conclusion is worth half-a-hundred half-finished tasks. "

-- Malcolm S. Forbes, publisher

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