JAMB Economics 1990 Question 20

Question 20

Market Structures

Which of the following is applicable to a monopolistic firm operating at the output where marginal cost equals marginal revenue?

  1. A.Cost of production is at a minimum
  2. B.The plant is of optimum size
  3. C.Price is above marginal revenue
  4. D.Average variable cost is at a minimum
Show the answer and explanation

Answer: C (Price is above marginal revenue)

Explanation

A monopolist faces a downward-sloping demand curve, so its marginal revenue is below price; at MC = MR, price is greater than MR.