Josh Linn is an associate professor in the Department of Agricultural and Resource Economics at the University of Maryland and a senior fellow at Resources for the Future. His research centers on the effects of environmental policies and economic incentives for new technologies in the transportation, electricity, and industrial sectors. His transportation research assesses passenger vehicle taxation and fuel economy standards in the United States and Europe. He has examined the effects of Beijing’s vehicle ownership restrictions on travel behavior, labor supply, and fertility. His work on the electricity sector has compared the effectiveness of cap and trade and alternative policy instruments in promoting new technology and reducing emissions of carbon dioxide and local air pollutants. Recent studies have compared the roles of natural gas prices and environmental regulation in explaining coal mine closures and the shift away from coal-fired generation in the United States. He has examined the implications of low-cost storage and renewables for reducing electricity sector emissions.