The Importance of Rationality in Economics

Sally Kohn: My dad had an interesting combination of ideas because he was very interested in what came to be known as evolutionary psychology. But on the other hand, when it came to economics, he was a big fan of the fully rational approach. So I never felt like I had a completely good read from him on that about how he reconciled those two things. When I went to graduate school and was studying finance at the University of Chicago under Jean Fama... It seemed kind of strange to me because I knew how irrational I often am in my personal life.