Question

assume at the price of 5 naira per unit 50 oranges and 35 pineapple are bought as a result of prices of oranges to 15 naira per unit. the quantity of price of pineapple purchase increase to 70 unit while oranges decreased to 15 unit. what is the cross elasticity for demand of pineapple.
find:
cross elasticity for pineapple

Answer 1

Cross price elasticity of demand = % change in quantity demanded of good x / % change in price of good Y

% change in Qd for pineapple = ((70-35)/ 35) × 100 = 35/35×100 = 100%

% change in price of oranges = ((15-5)/ 5) ×100 = 10/ 5 ×100= 200%

Cross elasticity of pineapple = 100% ÷ 200%= 0.5

Therefore, the two goods are substitutes.