U-SHAPED COST CURVES: The family of short-run cost curves consisting of average total cost, average variable cost, and marginal cost, all of which have U-shapes. They are U-shaped because each has high but falling cost at low quantities of output, which then reaches a minimum, then has rising cost at larger quantities of output. Although the average fixed cost curve is not U-shaped, it's occasionally included with the other three just for sake of completeness.

     See also | average total cost | average variable cost | marginal cost | average fixed cost | average total cost curve | average variable cost curve | marginal cost curve | average fixed cost curve | short-run production | stages of production | increasing marginal returns | decreasing marginal returns | law of diminishing marginal returns | total cost | total variable cost | total fixed cost |

U-SHAPED COST CURVES, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: December 7, 2024].

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One of several specific aggregate demand determinants assumed constant when the aggregate demand curve is constructed, and that shifts the aggregate demand curve when it changes. An increase in the money supply causes an increase (rightward shift) of the aggregate curve. A decrease in the money supply causes a decrease (leftward shift) of the aggregate curve. Other notable aggregate demand determinants include interest rates, inflationary expectations, and the federal deficit.

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