What is the primary goal of market-based environmental policies?

• A. To maximize government revenue
• B. To eliminate all private incentives
• C. To subsidize all firms equally
• D. To align private incentives with social welfare by incorporating external costs/benefits into prices.

Answer: (D)

Align private incentives with social welfare by incorporating external costs and benefits into prices. Market-based environmental policies accomplish this by using price signals—such as a pollution tax or a cap-and-trade system—that make polluters face the true social cost of their emissions. When a price reflects the external costs, firms weigh that cost against the private cost of reducing pollution and cut emissions until the marginal private cost of abatement equals the marginal social benefit. This alignment helps achieve a more efficient outcome and reduces welfare losses from environmental harm. The other options miss the aim because they focus on revenue, equal subsidies, or removing private incentives rather than correcting the externality through price signals.