This week on the podcast, Matt talks with John List, the Kenneth C. Griffin Distinguished Service Professor of Economics at the University of Chicago and Chief Economist at Walmart. List walks through his role at Walmart and how his work has the potential to change the world because of Walmart’s footprint. They then discuss his experience in working with Lyft and United Airlines on loyalty programs and they finish discussing John’s book, The Voltage Effect, and the concept of optimal quitting.