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VARIABLE INPUT: An input whose quantity can be changed in the time period under consideration. This should be immediately compared and contrasted with fixed input. The most common example of a variable input is labor. A variable input provides the extra inputs that a firm needs to expand short-run production. In contrast, a fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive. This is, by the way, the law of diminishing marginal returns.
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MARGINAL FACTOR COST CURVE A curve that graphically represents the relation between marginal factor cost incurred by a firm for hiring an input and the quantity of input employed. A profit-maximizing firm hires the quantity of input found at the intersection of the marginal factor cost curve and marginal revenue product curve. The marginal factor cost curve for a firm with no market control is horizontal. The marginal factor cost curve for a firm with market control is positively sloped and lies above the average factor cost curve.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet wanting to buy either a replacement remote control for your television or a replacement nozzle for your shower. Be on the lookout for cardboard boxes.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"My future starts when I wake up every morning . . . Every day I find something creative to do with my life. " -- Miles Davis, musician
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IMF
International Monetary Found
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