Nobel Prize winner Paul Krugman joins Michael Klein for a discussion on globalization, global trade patterns since the late 19th century, trade policy, protectionism and tariffs, and industrial policy. They also discuss the economics of geography, and the importance of communicating clear economic models. Krugman is a Distinguished Professor of Economics at the Graduate Center of the City University of New York. He is the author of numerous books, including most recently "Arguing with Zombies Economics, Politics, and the Fight for a Better Future."