MARGINAL COST: The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost indicates how much total cost changes for a give change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (remember total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. Marginal cost, usually abbreviated MC, is found by dividing the change in total cost (or total variable cost) by the change in output.

     See also | total cost | total variable cost | marginal cost curve | quantity | law of diminishing marginal returns | technology | resource prices | increasing marginal returns | decreasing marginal returns | U-shaped cost curves | average total cost | average variable cost | average fixed cost | total cost |

MARGINAL COST, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2021. [Accessed: May 8, 2021].

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A graphical representation of the relation between the price to a factor of production and quantity of the factor supplied, holding all ceteris paribus factor supply determinants constant. The factor supply curve is one half of the factor market. The other half is the factor demand curve.

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