The Diagram Below Shows the Marginal Cost of Pollution Abatement

question 83

Multiple Choice

The diagram below shows the marginal cost of pollution abatement for two firms,Firm X and Firm Y.
FIGURE 17-6
-Refer to Figure 17-6.There is an emissions tax of $ t per unit of pollution.Which of the following statements regarding the pollution abatement activities by the two firms is correct?

• A)It is not socially optimal to have Firm X doing pollution abatement of QX while Firm Y does the lesser amount,QY.
• B)It is efficient for Firm Y to do less pollution abatement than Firm X because Firm Y faces higher costs of abatement.
• C)The emissions tax causes no change in the firmsʹ polluting activity.
• D)The shaded areas in the two graphs depict the social costs of pollution caused by Firms X and Y.
• E)The emissions tax causes an optimal level of pollution.