Dave Donaldson teaches and carries out research on trade, both international and intranational, with applications in the fields of International Economics, Development Economics, Urban Economics, Economic History, Environmental Economics, and Agricultural Economics. He has studied, among other topics: the welfare and inequality effects of market integration, the impact of improvements in transportation infrastructure, how trade can mitigate and exacerbate the effects of climate change, and how economists can quantify market failures and the interventions (such as industrial policy) that attempt to fix them. He was awarded the 2017 John Bates Clark Medal, given by the American Economic Association to the US-based economist “under the age of forty who is judged to have made the most significant contribution to economic thought and knowledge”, as well as an Alfred P. Sloan Research Fellowship and several grants from the National Science Foundation. He has served as a co-editor at Econometrica and American Economic Journal: Applied Economics and is a Fellow of the Econometric Society and a member of the American Academy of Arts and Sciences. A native of Toronto, Canada, Donaldson obtained an undergraduate degree in Physics from Oxford University and a PhD in Economics from the London School of Economics.Stephen Redding’s research interests include international trade, economic geography, and productivity growth. Recent work has been concerned with heterogeneous firms, multi-product firms, the distributional consequences of globalization, agglomeration forces, and transport infrastructure improvements. He is currently the Harold T. Shapiro *64 Professor in Economics in the Economics Department and School of Public and International Affairs at Princeton University; Director of the International Trade and Investment (ITI) Program of the National Bureau of Economic Research (NBER); and Co-Director of the Griswold Center for Economic and Policy Studies (GCEPS) at Princeton University. He is a fellow of the Econometric Society, an associate editor of Econometrica and the Quarterly Journal of Economics, an International Research Associate of the Centre for Economic Performance at the London School of Economics, and a Research Fellow of the Centre for Economic Policy Research. Prior to joining Princeton University, he was a Professor in Economics at the London School of Economics and the Yale School of Management. He was awarded the Frisch Medal in 2018, the Bhagwati Prize in 2017, a Global Economic Affairs Prize from the Kiel Institute for the World Economy in 2008, and a Philip Leverhulme Prize Fellowship during 2001-4.

• 1. New Data and Insights in Regional and Urban EconomicsRan Abramitzky, Leah Boustan and Adam Storeygard2. Quantitative Regional EconomicsTreb Allen and Konstantinos Costas Arkolakis3. Spatial Environmental EconomicsClare Balboni and Joseph S. Shapiro4. Housing Supply and Housing AffordabilityGilles Duranton and Nathaniel Baum-Snow5. Spatial Economics for Low- and Middle- Income CountriesGharad Bryan and Melanie Morten6. Spatial DynamicsKlaus Desmet and Fernando Parro7. Spatial Sorting and InequalityRebecca Diamond and Juan Carlos Suarez Serrato8. TransportationDave Donaldson9. Optimal Spatial PoliciesPablo Fajgelbaum and Cecile Gaubert10. Local Labor MarketsGordon Hanson and Enrico Moretti11. Quantitative Urban EconomicsStephen J. Redding

Dave Donaldson teaches and carries out research on trade, both international and intranational, with applications in the fields of International Economics, Development Economics, Urban Economics, Economic History, Environmental Economics, and Agricultural Economics. He has studied, among other topics: the welfare and inequality effects of market integration, the impact of improvements in transportation infrastructure, how trade can mitigate and exacerbate the effects of climate change, and how economists can quantify market failures and the interventions (such as industrial policy) that attempt to fix them. He was awarded the 2017 John Bates Clark Medal, given by the American Economic Association to the US-based economist “under the age of forty who is judged to have made the most significant contribution to economic thought and knowledge”, as well as an Alfred P. Sloan Research Fellowship and several grants from the National Science Foundation. He has served as a co-editor at Econometrica and American Economic Journal: Applied Economics and is a Fellow of the Econometric Society and a member of the American Academy of Arts and Sciences. A native of Toronto, Canada, Donaldson obtained an undergraduate degree in Physics from Oxford University and a PhD in Economics from the London School of Economics.Stephen Redding’s research interests include international trade, economic geography, and productivity growth. Recent work has been concerned with heterogeneous firms, multi-product firms, the distributional consequences of globalization, agglomeration forces, and transport infrastructure improvements. He is currently the Harold T. Shapiro *64 Professor in Economics in the Economics Department and School of Public and International Affairs at Princeton University; Director of the International Trade and Investment (ITI) Program of the National Bureau of Economic Research (NBER); and Co-Director of the Griswold Center for Economic and Policy Studies (GCEPS) at Princeton University. He is a fellow of the Econometric Society, an associate editor of Econometrica and the Quarterly Journal of Economics, an International Research Associate of the Centre for Economic Performance at the London School of Economics, and a Research Fellow of the Centre for Economic Policy Research. Prior to joining Princeton University, he was a Professor in Economics at the London School of Economics and the Yale School of Management. He was awarded the Frisch Medal in 2018, the Bhagwati Prize in 2017, a Global Economic Affairs Prize from the Kiel Institute for the World Economy in 2008, and a Philip Leverhulme Prize Fellowship during 2001-4.

• 1. New Data and Insights in Regional and Urban EconomicsRan Abramitzky, Leah Boustan and Adam Storeygard2. Quantitative Regional EconomicsTreb Allen and Konstantinos Costas Arkolakis3. Spatial Environmental EconomicsClare Balboni and Joseph S. Shapiro4. Housing Supply and Housing AffordabilityGilles Duranton and Nathaniel Baum-Snow5. Spatial Economics for Low- and Middle- Income CountriesGharad Bryan and Melanie Morten6. Spatial DynamicsKlaus Desmet and Fernando Parro7. Spatial Sorting and InequalityRebecca Diamond and Juan Carlos Suarez Serrato8. TransportationDave Donaldson9. Optimal Spatial PoliciesPablo Fajgelbaum and Cecile Gaubert10. Local Labor MarketsGordon Hanson and Enrico Moretti11. Quantitative Urban EconomicsStephen J. Redding

Dave Donaldson teaches and carries out research on trade, both international and intranational, with applications in the fields of International Economics, Development Economics, Urban Economics, Economic History, Environmental Economics, and Agricultural Economics. He has studied, among other topics: the welfare and inequality effects of market integration, the impact of improvements in transportation infrastructure, how trade can mitigate and exacerbate the effects of climate change, and how economists can quantify market failures and the interventions (such as industrial policy) that attempt to fix them. He was awarded the 2017 John Bates Clark Medal, given by the American Economic Association to the US-based economist “under the age of forty who is judged to have made the most significant contribution to economic thought and knowledge”, as well as an Alfred P. Sloan Research Fellowship and several grants from the National Science Foundation. He has served as a co-editor at Econometrica and American Economic Journal: Applied Economics and is a Fellow of the Econometric Society and a member of the American Academy of Arts and Sciences. A native of Toronto, Canada, Donaldson obtained an undergraduate degree in Physics from Oxford University and a PhD in Economics from the London School of Economics.Stephen Redding’s research interests include international trade, economic geography, and productivity growth. Recent work has been concerned with heterogeneous firms, multi-product firms, the distributional consequences of globalization, agglomeration forces, and transport infrastructure improvements. He is currently the Harold T. Shapiro *64 Professor in Economics in the Economics Department and School of Public and International Affairs at Princeton University; Director of the International Trade and Investment (ITI) Program of the National Bureau of Economic Research (NBER); and Co-Director of the Griswold Center for Economic and Policy Studies (GCEPS) at Princeton University. He is a fellow of the Econometric Society, an associate editor of Econometrica and the Quarterly Journal of Economics, an International Research Associate of the Centre for Economic Performance at the London School of Economics, and a Research Fellow of the Centre for Economic Policy Research. Prior to joining Princeton University, he was a Professor in Economics at the London School of Economics and the Yale School of Management. He was awarded the Frisch Medal in 2018, the Bhagwati Prize in 2017, a Global Economic Affairs Prize from the Kiel Institute for the World Economy in 2008, and a Philip Leverhulme Prize Fellowship during 2001-4.

• 1. New Data and Insights in Regional and Urban EconomicsRan Abramitzky, Leah Boustan and Adam Storeygard2. Quantitative Regional EconomicsTreb Allen and Konstantinos Costas Arkolakis3. Spatial Environmental EconomicsClare Balboni and Joseph S. Shapiro4. Housing Supply and Housing AffordabilityGilles Duranton and Nathaniel Baum-Snow5. Spatial Economics for Low- and Middle- Income CountriesGharad Bryan and Melanie Morten6. Spatial DynamicsKlaus Desmet and Fernando Parro7. Spatial Sorting and InequalityRebecca Diamond and Juan Carlos Suarez Serrato8. TransportationDave Donaldson9. Optimal Spatial PoliciesPablo Fajgelbaum and Cecile Gaubert10. Local Labor MarketsGordon Hanson and Enrico Moretti11. Quantitative Urban EconomicsStephen J. Redding