Exam 5: Externalities

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Reducing output from the privately optimal level to the socially optimal level will

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Incentive-based regulations provide polluters no incentive to reduce pollution and are thus not used often.

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A tax levied on each unit of pollution is

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Consider the case of two farmers,Tony and Hakim,depicted in the following figure.Both use DDT (a chemical pesticide)for their crops.The use of DDT causes an externality for swimmers down river from the farms. (a)Show the amount of pesticides used if each uses the privately optimal level of pesticides. (b)Show the amount of pesticides used if they are socially concerned. (c)Why is a reduction back to XH = HT not socially desired? Consider the case of two farmers,Tony and Hakim,depicted in the following figure.Both use DDT (a chemical pesticide)for their crops.The use of DDT causes an externality for swimmers down river from the farms. (a)Show the amount of pesticides used if each uses the privately optimal level of pesticides. (b)Show the amount of pesticides used if they are socially concerned. (c)Why is a reduction back to X<sub>H</sub> = H<sub>T</sub> not socially desired?

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  Figure 5.11   Figure 5.12 -Refer to Figure 5.11 and Figure 5.12 of to answer this question: A) In case of an inelastic marginal social benefit curve,what type of pollution reduction system should the government employ? Why? B)If the social benefit curve is elastic,do you answer change? C)What are advantages and disadvantages of Cap-and-Trade systems over Emission Fee systems when the inflation and change in marginal costs are considered? Figure 5.11   Figure 5.11   Figure 5.12 -Refer to Figure 5.11 and Figure 5.12 of to answer this question: A) In case of an inelastic marginal social benefit curve,what type of pollution reduction system should the government employ? Why? B)If the social benefit curve is elastic,do you answer change? C)What are advantages and disadvantages of Cap-and-Trade systems over Emission Fee systems when the inflation and change in marginal costs are considered? Figure 5.12 -Refer to Figure 5.11 and Figure 5.12 of to answer this question: A) In case of an inelastic marginal social benefit curve,what type of pollution reduction system should the government employ? Why? B)If the social benefit curve is elastic,do you answer change? C)What are advantages and disadvantages of Cap-and-Trade systems over Emission Fee systems when the inflation and change in marginal costs are considered?

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An emissions fee is preferable to a cap-and-trade when MSB are elastic and costs are uncertain.

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A Pigouvian tax corrects for

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Which policy is more effective when handling externalities: Cap-and-trade or emissions fee?

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Congestion pricing

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Why are command- and -control regulations less flexible than incentive based systems?

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Market?oriented solutions to externalities rarely work.

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Externalities can be produced by ____________,as well as ____________.

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A cap-and-trade policy

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Externalities can be positive because

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List and discuss three problems that might arise when using the Coase theorem.

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A subsidy for pollution not produced can induce producers to pollute at the efficient level.

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For market efficiency,MSC must be equated to MSB.

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