At the current price of a good, Jessica's consumer surplus equals 12, Lauren's consumer surplus equals 14, and Isabel's consumer surplus is 4. By perfect discrimination, a monopolist could increase his profit by

The demand and the supply for a good are each neither perfectly elastic nor perfectly inelastic. If a sales tax on sellers of the good is imposed, the tax is paid by

A) only buyers. B) only sellers. C) both buyers and sellers. D) neither buyers nor sellers.

Sue consumes apples and bananas. Suppose Sue's income doubles and the prices of apples and bananas do not change. Sue's budget line will

A) shift leftward and its slope will not change. B) remain unchanged. C) shift rightward and its slope will not change. D) shift rightward and become steeper.