Problem
A firm's long-run total cost curve is TC(Q) = 40Q - 10Q2 + Q3 , and its long-run marginal cost curve is MC(Q) = 40 - 20Q + 3Q2 . Over what range of output does the production function exhibit economies of scale, and over what range does it exhibit diseconomies of scale?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.