中等ECON-MSTR-017
Why is marginal revenue below price for a single-price monopolist?
A. To sell one more unit the firm must cut the price on all units, not only on the extra unit.✓ 答案
B. Marginal cost is always below average cost.
C. The firm is a price taker.
D. Buyers pay different prices for the same unit.
解說
A single price applies to every unit. The extra unit brings in its price, but the price cut on the previous units is lost revenue. That loss pulls MR below price. Price discrimination, where buyers pay different prices, is a different model.