If a 1 percent increase in the price of X increases the quantity demanded of Y by 2 percent, then X and Y are
A) complements and the cross elasticity of demand equals 2.
B) substitutes and the cross elasticity of demand equals 1/2.
C) substitutes and the cross elasticity of demand equals 2.
D) complements and the income elasticity of demand equals 2.
E) normal goods and the income elasticity of demand of each equals 2.
C
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Which of the following statements is not true about a market system?
a. The market system provides an incentive to consumers to acquire purchasing ability. b. The market system magnifies the problem of scarcity of goods and services. c. The market system provides an incentive for allocating resources. d. The market system provides an incentive to improve the quality of goods produced. e. The market system provides everything everyone wants to consume.
A movie monopolist sells to students and adults. The demand function for students is QdS = 600 - 100P and the demand function for adults is QdA = 1,200 - 100P. The marginal cost is $2 per ticket. What is the difference in the monopolist's profit when it is able to price discriminate and when it cannot?
A. $2,500 C. $0 D. $50