Question

Which of the following statements is (are) TRUE? I. As market prices increase, industry output rises because individual firms have upward-sloping marginal cost curves. II. As market prices increase, industry output rises because high-cost producers enter the industry. III. As market prices increase, industry output rises because individual firms have upward-sloping short-run supply curves.

Answer 1

I, II, and III. All of those are true.