Trade: the effects of a border between East and West Germany

From the Peterson Institute for International Economics comes this interview in which Soumaya Keynes and Chad Bown talk with Stephen Redding (Princeton University) about his research on the border between East and West Germany erected in the mid-20th century. They discuss the loss of market access for cities near the border, and how being cut off from one's neighbours affected the local economy. Spoiler: It wasn't pretty ...