WAEC Economics 2004 Question 18

Question 18

Elasticity

When a change in price does not affect the quantity demanded of a commodity, the price elasticity of demand is

  1. A.fairly inelastic
  2. B.infinitely elastic
  3. C.perfectly inelastic
  4. D.unitary elastic
Show the answer and explanation

Answer: C (perfectly inelastic)

Explanation

If quantity does not change at all when price changes, elasticity is zero: perfectly inelastic.