单选题
At an output quantity equal to 250, a monopoly firm faces a demand
curve with a price (P) of $50, a marginal cost (MC) and marginal revenue (MR)
equal to $10, and an average total cost (ATC) equal to $12. The economic profit
for this monopoly firm is closest to:
- A. $12500.
- B. $10000.
- C. $9500.
【正确答案】
C
【答案解析】Economic profit = Total revenue - total cost, where total revenue = PQ and total cost = ATC × Q. So, Economic profit = $ 9500 = $ 50 × 250 - $12 × 250.