a) Explain the difference between a positive externality and a negative externality and why each result in an equilibrium point that is not optimal for society. (b) which externality results in an equilibrium quantity that is higher than the optimal social quantity of a good? (c) how can the impact of the externality in part b be corrected?

Economics (MindTap Course List)
13th Edition
ISBN:9781337617383
Author:Roger A. Arnold
Publisher:Roger A. Arnold
Chapter30: Market Failure: Externalities, Public Goods, And Asymmetric Information
Section: Chapter Questions
Problem 8QP
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(a) Explain the difference between a positive externality and a negative externality and why each result in an equilibrium point that is not optimal for society.

(b) which externality results in an equilibrium quantity that is higher than the optimal social quantity of a good?

(c) how can the impact of the externality in part b be corrected? 

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