A factory's production process releases pollutants into the air, imposing health costs on the nearby community. After a new environmental policy is implemented, an economist determines that the factory is now producing at the Pareto-efficient quantity. Which of the following statements must be true about the situation at this efficient output level?

If a market with a negative externality, such as industrial pollution, is corrected to operate at the Pareto-efficient output level, it means that the activity causing the externality has been completely eliminated.

Explaining Efficient Pollution Levels

Evaluating Pollution Reduction Policies

Critique of a Zero-Pollution Policy

A chemical plant's production process pollutes a nearby river. The market price for its product reflects the marginal social benefit. The plant's own production costs are its marginal private costs. The pollution damage represents a marginal external cost. Match each production level description with its corresponding economic outcome.

When a market with a negative externality is operating at its Pareto-efficient output, the marginal external cost generated by the last unit produced is greater than ____.

Efficiency vs. Elimination of Externalities

A steel factory's production process creates air pollution, which imposes health costs on the local community. An economic analysis has identified the Pareto-efficient quantity of steel to produce. For the very last ton of steel produced at this efficient quantity, which statement accurately describes the economic trade-off?

The Riverwood Paper Mill Debate