In the short-run; a firm marginal cost curve above the point of shut-down is its? by Sunday | Oct 29 | Economics JAMB | 0 comments A. demand curve B. supply curve C. cost curve D. supply curve Correct Answer: Option B – supply curve Users Also Read These:The average curve and the marginal curve are…In the theory of production and cost, the average…If the short-run cost curve of a firm is U-shaped;…At the maximum point of the total product curve of a…If a total cost curve is plotted; marginal cost can…