Dave Donaldson is the Class of 1949 Professor of Economics at MIT. He obtained an undergraduate degree in Physics from Oxford University and a PhD in Economics from the London School of Economics. His research focuses on international and intranational trade, with applications to topics such as 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 as well as a 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.