What Do Economists Have to Say about the Clean Air Act 50 Years after the Establishment of the Environmental Protection Agency?
回顾环保署成立50周年，总结经济学研究关于《清洁空气法》在成本、收益和分配影响方面的发现，并讨论政策和技术变化带来的新研究机会。
Air quality in the United States has improved dramatically over the past 50 years in large part due to the introduction of the Clean Air Act and the creation of the Environmental Protection Agency to enforce it. This article is a reflection on the 50-year anniversary of the formation of the Environmental Protection Agency, describing what economic research says about the ways in which the Clean Air Act has shaped our society—in terms of costs, benefits, and important distributional concerns. We conclude with a discussion of how recent changes to both policy and technology present new opportunities for researchers in this area.