Dave Donaldson teaches and carries out research on trade, both international and intranational, with applications in the fields of International Economics, Development Economics, Economic History, Environmental Economics, Urban 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, and how trade can mitigate and exacerbate the effects of climate change. This work 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 currently serves as a co-editor at Econometrica and previously at American Economic Journal: Applied Economics. He 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.