Matthew Turner is a Professor of Economics at Brown University. He regularly teaches courses in urban and environmental economics, and occasionally, microeconomic theory. He is broadly interested in environmental and urban policy and his recent research focuses on the economics of land use and transportation. Current projects investigate the effects of the interstate highway system on US economic development, the relationship between subways and urban air pollution and the determinants of global particulate exposure. Professor Turner holds a Ph.D. in economics from Brown University. He is Vice President of the Urban Economics Association and a past Co-Editor of the Journal of Urban Economics. His research appears in the American Economic Review, the Journal of Political Economy, the Quarterly Journal of Economics, the Review of Economic Studies and Econometrica, and is regularly featured in the popular press.