For a competitive market in long-run equlibrium to be Pareto-efficient... Select one: a. Firms do not make profits of any kind b. Marginal private costs are below marginal social costs c. Marginal private costs are above marginal social costs d. Marginal external costs are zero

Principles of Economics 2e
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ISBN:9781947172364
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Chapter12: Environmental Protection And Negative Externalities
Section: Chapter Questions
Problem 41P: Refer to Table 12.2. The externality created by the refrigerator production was 100. However, once...
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For a competitive market in long-run equlibrium to be Pareto-efficient...
Select one:
a. Firms do not make profits of any kind
b. Marginal private costs are below marginal social costs
c. Marginal private costs are above marginal social costs
d. Marginal external costs are zero

 

Please tell me which of these multiple awnsers are correct.Thank you

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