We synthesize and review retrospective analyses of federal air quality regulations to examine the contributions of the Clean Air Act to the vast air quality improvements seen since 1970. Geographic heterogeneity in stringency affects emissions, public health, compliance costs, and employment....

Pricing carbon emissions from a jurisdiction could harm the competitiveness of local firms, causing the leakage of emissions and economic activity to other regions. Past research concentrated on national carbon prices, but the impacts of subnational carbon prices could be more severe due to the...

China is planning to implement the largest CO₂ emissions trading system in the world. To reduce emissions, the system will be a tradable performance standard (TPS), an emissions pricing mechanism that differs significantly from the emissions pricing instruments used in other countries, such as...