MAC1 = 100 – 2e1     MAC2 = 50 – 0.5e2 1. Without regulation, what is the total level of emissions Eu? 2. If a regulator wants to reduce aggregate emissions to 50 units cost-effectively, how much should each firm emit? Firm 1’s emissions level ________________ Firm 2’s emissions level ________________ 3. If a regulator wants to reduce aggregate emissions to 50 units cost-effectively, what uniform emissions tax should the regulator impose?

Principles of Microeconomics
7th Edition
ISBN:9781305156050
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter10: Externalities
Section: Chapter Questions
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Consider two competitive firms with the following marginal abatement cost functions:

    MAC1 = 100 – 2e1
    MAC2 = 50 – 0.5e2

1. Without regulation, what is the total level of emissions Eu?

2. If a regulator wants to reduce aggregate emissions to 50 units cost-effectively, how much should each firm emit?

Firm 1’s emissions level ________________

Firm 2’s emissions level ________________

3. If a regulator wants to reduce aggregate emissions to 50 units cost-effectively, what uniform emissions tax should the regulator impose?

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