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 relationship between the marginal revenue (MR)…In perfect competition, the marginal cost curve…In the diagram below, the curve which represents…For a firm to break even in the long run; the…At the maximum point of the total product curve of a…