For each of the following, indicate whether the statement is True, False, or Uncertain, and explain your answer. (No credit will be given without an explanation.)

1. In the exchange problem, it is inefficient to give everything to one person.
2. In the Lindahl mechanism, everyone pays the same price for a public good.
3. The socially efficient solution is to not produce any externality.
4. Voting over a single-issue will always lead to a winning vote on the choice by the median voter.
5. Bargaining over any assignment of property rights leads to the efficient solution.