THE PSYCHOLOGY OF HUMAN MISJUDGMENT: 1

By Charlie Munger (Warren Buffett's partner at Berkshire Hathaway)

Speech at Harvard Law School (1995)

Transcription, comments [in brackets] by Whitney Tilson (feedback@Tilsonfunds.com)

Moderator: ...and they discovered extreme, obvious irrationality in many areas of the economy that they looked at. And they were a little bit troubled because nothing that they had learned in graduate school explained these patterns. Now I would hope that Mr. Munger spends a little bit more time around graduate schools today, because we've gotten now where he was 30 years ago, and we are trying to explain those patterns, and some of the people who are doing that will be speaking with you today.

So I think he thinks of his specialty as the Psychology of Human Misjudgment, and part of this human misjudgment, of course, comes from worrying about the types of fads and social pressures that Henry Kaufman talked to us about. I think it's significant that Berkshire Hathaway is not headquartered in New York, or even in Los Angeles or San Francisco, but rather in the heart of the country in Nebraska.

When he referred to this problem of human misjudgment, he identified two significant problems, and I'm sure that there are many more, but when he said, "By not relying o­n this, and not understanding this, it was costing me a lot of money," and I presume that some of you are here in the theory that maybe it's costing you even a somewhat lesser amount of money. And the second point that Mr. Munger made was it was reducing...not understanding human misjudgment was reducing my ability to help everything I loved. Well I hope he loves you, and I'm sure he'll help you. Thank you. [Applause]

Munger: Although I am very interested in the subject of human misjudgment -- and lord knows I've created a good bit of it -- I don't think I've created my full statistical share, and I think that o­ne of the reasons was I tried to do something about this terrible ignorance I left the Harvard Law School with. When I saw this patterned irrationality, which was so extreme, and I had no theory or anything to deal with it, but I could see that it was extreme, and I could see that it was patterned, I just started to create my own system of psychology, partly by casual reading, but largely from personal experience, and I used that pattern to help me get through life. Fairly late in life I stumbled into this book, Influence, by a psychologist named Bob Cialdini, who became a super-tenured hotshot o­n a 2,000-person faculty at a very young age. And he wrote this book, which has now sold 300-odd thousand copies, which is remarkable for somebody. Well, it's an academic book aimed at a popular audience that filled in a lot of holes in my crude system. In those holes it filled in, I thought I had a system that was a good-working tool, and I'd like to share that o­ne with you.

And I came here because behavioral economics. How could economics not be behavioral? If it isn't behavioral, what the hell is it? And I think it's fairly clear that all reality has to respect all other reality. If you come to inconsistencies, they have to be resolved, and so if there's anything valid in psychology, economics has to recognize it, and vice versa. So I think the people that are working o­n this fringe between economics and psychology are absolutely right to be there, and I think there's been plenty wrong over the years. Well let me romp through as much of this list as I have time to get through: