MCQ 9 If the cross-price elasticity of demand between products X and Y is positive, we can infer that: A products X and Y are complementary goods the demand for both products must be price inelastic,...

Extracted text: MCQ 9 If the cross-price elasticity of demand between products X and Y is positive, we can infer that: A products X and Y are complementary goods the demand for both products must be price inelastic, to ensure that a fall in the price of one of the products does not lead to a decrease in the demand for the В other product C I do not want to answer this question. D the price elasticity of demand for both products must be positive E the income elasticity of demand for both products must be negative, because the multiplication of two negative numbers gives a positive number F products X and Y are substitute goods