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Suppose the own-price elasticity of demand for good X is −3, its income elasticity is 1, its advertising elasticity is 2, and the cross-price elasticity of demand between it and good Y is −4. Determine how much the consumption of this goodwill change if the price of good X decreases by 5 percent.

Answer :

Answer:

Consumption of good will increase by 15%

Explanation:

Price Elasticity of Demand : is demand responsiveness to price change.

Ped = Percentage change in demand/ percentage change in price

Ped = %ΔQ / %ΔP

%ΔP  = -5  ; Pe = -3 [Given]  

As per formula :

-3 = %ΔQ /  -5

%ΔQ = (-3)X (-5) = +15%

Percentage change (increase) in Quantity = 15%

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