Problem
Consider the supply curves of two firms in a competitive industry: P = QA and P = 2QB.
(a) On a diagram, draw these two supply curves, marking their intercepts and slopes numerically (remember that they are really MC curves).
(b) Now draw a supply curve that represents the combined supply of these two firms.
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.