At the current price of a good, Al's consumer surplus equals 15, and Ben's consumer surplus equals 15. By charging a two-part tariff, a monopolist could increase his profit by

The free-rider problem is the reason way private markets are unlikely to achieve the efficient level of production of

A) normal goods. B) excludable goods. C) public goods. D) private goods.

Juan is going to spend all of his income. For the last unit of Good X consumed Juan gets 20 utils and for the last unit of Good Y consumed he gets 10 utils. The price of Good X is $4. The price of Good Y is $2. If Juan wants to maximize his utility he should

A. continue to purchase the same amount of Good X and Good Y. B. increase the consumption of Good X and decrease the consumption of Good Y. C. decrease the consumption of Good X and increase the consumption of Good Y. D. decrease the consumption of Good X and decrease the consumption of Good Y.