Political jurisdictions have incentives to promote pollution spillovers to capture the benefits of economic production within their borders while exporting the environmental costs to their neighbors. The authors examine the extent to which U.S. states engage in this type of free-riding behavior....

In federal systems both state governments and firms have incentives to strategically locate polluting facilities where the environmental and health consequences will be borne as much as possible by residents of other jurisdictions. We analyze air polluter location in the United States using a...

Excess emissions are air pollution releases that exceed permitted levels and occur during facility start-ups, shutdowns, or malfunctions. While they are violations of the federal Clean Air Act, states have historically granted violating facilities automatic exemptions; limiting enforcement and...