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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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SLOPE, SAVING LINE

The positive slope of the saving line is also termed the marginal propensity to save (MPS). This slope is greater than zero but less than one, reflecting induced saving and the Keynesian psychological law of consumer behavior that saving increases by less than the increase in income. The slope of the saving line provides the foundation for the slope of the leakages line used in the injections-leakages model. It thus also affects the magnitude of the multiplier process.

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Today, you are likely to spend a great deal of time at a going out of business sale hoping to buy either a looseleaf notebook binder or hand lotion, a big bottle of hand lotion. Be on the lookout for strangers with large satchels of used undergarments.
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A half gallon milk jug holds about $50 in pennies.
"Nothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must. "

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