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10. Consider a competitive industry for a good that has a negative externality. a. How does the amount produced by a free market compare with the socially-optimal level of production? Identify the total private surplus, external costs, and total social surplus both at the level of production that occurs in a free market and at the socially- optimal level of production. What is the deadweight loss of the externality? b. Suppose the government decides to address the negative externality by banning the good entirely. What is the deadweight loss in this case? Is it possible for the deadweight loss under the government ban to be larger than in the absence of any government policy