Optimal Pollution Abatement. Suppose the marginal benefit of pollution abatement is constant at $12 per unit. The marginal cost of abatement is $2 for the first unit abated and increases by $2 for...

Optimal Pollution Abatement. Suppose the marginal benefit of pollution abatement is constant at $12 per unit. The marginal cost of abatement is $2 for the first unit abated and increases by $2 for each additional unit, to $4 for the second unit, $6 for the third unit, and so on. Draw the marginal-benefit and marginal-cost curves and show the optimum level of pollution abatement. (Related to Application 1 on page 684.)