1. The marginal benefit curve of a public good
a. slopes downward.
b. slopes upward.
c. is horizontal.
d. is U-shaped.
2. Which of the following can bring about an efficient level of public goods being provided by the government?
a. voters who do not care about benefits and costs of public goods
b. rational ignorance on the part of voters
c. competition between political parties trying to win an election
d. free riding on the part of voters