JAMB Economics 1999 Question 18

Question 18

Theory of Costs and Revenue

A characteristic of the average fixed cost is that, it

  1. A.rises and falls faster than the marginal cost
  2. B.is U-shaped and intersects the price axis
  3. C.is always higher than the average variable cost
  4. D.falls continuously but is never equal to zero.
Show the answer and explanation

Answer: D (falls continuously but is never equal to zero.)

Explanation

AFC = fixed cost ÷ output. It keeps falling as output grows, but since fixed cost is never zero, it never reaches zero.