This paper explores firms' response to regulatory enforcement. New Source Review, a provision of the Clean Air Act, imposes stringent emissions limitations on significantly modified older power plants. In 1999, the EPA sued owners of 46 plants for NSR violations. We study how electricity...

This paper examines how much carbon emissions from the electricity industry would decrease in response to a carbon price. We show how both carbon prices and cheap natural gas reduce, in a nearly identical manner, the historic cost advantage of coal-fired power plants. The shale revolution has...

We compare the spatial distribution of emissions from Southern California's pollution-trading program with that of a counterfactual command-and-control policy. We develop a normatively significant metric with which to rank the various distributions in a manner consistent with an explicit...