US climate policy is unfolding under the Clean Air Act. Mobile source and construction permitting regulations are in place. Most important, the US Environmental Protection Agency (EPA) and the states will determine the form and stringency of the regulations for existing power plants. It is...

Energy benchmarking and disclosure laws have been passed in 10 US cities and one county and are under consideration in many more. The laws require owners of commercial and, in some cities, multifamily residential buildings to annually disclose their energy use and benchmark it relative to...

This paper considers the treatment of co-benefits in benefit-cost analysis of federal air quality regulations. Using a comprehensive data set on all major Clean Air Act rules issued by the Environmental Protection Agency over the period 1997-2019, we show that (1) co-benefits make up a...

As of late 2020, the Trump administration had initiated almost one hundred rollbacks of U.S. environmental regulations. A careful assessment of the benefits and costs of rolling back an existing regulation can and should inform such decisions. When assessing the potential rollback of an existing...

We analyze the evaluations of California energy-efficiency programs to assess the effectiveness of these evaluations in: 1) improving our understanding of their performance and 2) providing a check on utility incentives to overstate energy savings. We find that third-party evaluations are useful...