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Regulation of airborne particulates influences locations of people and the location and nature of production. Thus, an understanding of particulates exposure requires an understanding of these responses to particulates regulation. To investigate these issues, Turner and his colleagues assemble global spatially disaggregated panel data describing ambient particulate levels and transport, population, and economic and polluting activities. These data indicate the importance of country level determinants of pollution, of the equilibrium process that separates or brings together people and particulates, of urbanization, and of coal consumption. They then develop an Integrated Assessment Model describing particulate emissions, together with other economic activity and a model of pollution transport. This model allows the evaluation of the effect of particulates policies in 61 countries and determination of where research reducing parametric uncertainty is likely to change policy choices.

Turner is broadly interested in environmental and urban economics and his research focuses on the economics of land use and transportation. His research investigates the relationship between public transit and the growth of cities, how 'smart growth' development affects individual driving behavior, how transportation infrastructure is affecting the evolution of Chinese cities, and how urban land use is evolving in the United States. Recently completed projects investigate the welfare implications of residential land use regulation, the cost of traffic congestion, the effects of infrastructure on patterns of trade, urban growth, and the total amount of driving in a city.

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