Bonus articles: Pollution as a negative externality (K-A)

• Command-and-control regulation (K-A)
• What are market-oriented environmental tools? (K-A)
• Types of market-oriented environmental tools (K-A)
• The benefits and costs of US environmental laws (K-A)
• International environmental issues (K-A)
• The tradeoff between economic output and environmental protection (K-A)