Douglas Irwin is the John French Professor of Economics at Dartmouth College. He is the author of a number of books, including the definitive history of American trade policy, Clashing over Commerce. In this sheltering at home edition of Uncommon Knowledge, we delve deep into the issues around the Trump administration’s imposition of huge tariffs on goods from China and elsewhere, and the impact of a health crisis that has businesses across the country re-examining their investments abroad. Also, what’s the right way to think about international trade? Is free trade still the best policy? We get deep into the weeds of the issues around imports and exports with Professor Irwin.