
Answer:
Explanation:
Income Elasticity Formula = Percentage change in Demand
                       Percentage change in Income
Percentage Change in Income = - 18%
Chips Income Elasticity = %ΔQ/ %ΔY
= -6/-18 = 0.33
Clubs Income Elasticity = %ΔQ/ %ΔY Â
= +17/-18 = -0.94
Houses Income Elasticity = %ΔQ/ %ΔY Â
= -29/-18 = 1.61
Chips & Houses have positive income elasticities, they are Normal Goods. Clubs have negative income elasticity, they are Inferior goods.
Houses demand is more income elastic i.e > 1 . So, its a luxury good