Thomas Rustici of George Mason University and author of Lessons from the Great Depression talks with EconTalk host Russ Roberts about the impact of the Smoot-Hawley Act on the economy. The standard view is that the decrease in trade that followed Smoot-Hawley was not big enough to be a significant contributor to the Great Depression. Rustici argues that this Keynesian approach that looks at aggregate spending misses a crucial mechanism for understanding the impact of Smoot-Hawley. Rustici focuses on the impact of Smoot Hawley on bank closings and the money supply. Smoot-Hawley launched an international trade war that reduced world trade dramatically. This had large concentrated regional effects in the United States and around the world in areas that depended on trade. Those were the areas where the first banks collapsed, contracting the money supply via the fractional reserve banking system. Rustici argues that the Keynesian indictment of the price system ignores the policy failures that destroyed the institutions that make the price system work.