Problem 17.4.2 Suppose that the inverse demand curve for paper is p = 200 - Q, the private marginal cost (unregulated competitive market supply) is MCP = 80 + Q, and the marginal harm from gunk is MC: = Q. a. What is the unregulated monopoly equilibrium? b. How could you optimally regulate the monopoly? What is the resulting (socially optimal) equilibrium? (Hint, See Solved Problem 17.2.) M Problem 17.6.8 Vaccinations help protect the unvaccinated from disease. Boulier et al. (2007) find that the marginal externality effect can be greater than one case of illness prevented among the unvaccinated. Is vaccination a public good? If so, what might the government do to protect society optimally