Here's a compelling question: Can you profit from others' irrational investment mistakes?

Now, all of us have moments when we look back and wonder, “What the heck was I thinking?” I have that — (laughter) — quite a bit. ...

We are rational, self-interested optimizers: Homo economicus. So the neoclassical model of economics has held for over a century. It has...

Daniel Kahneman is Professor of Psychology and Public Affairs Emeritus at Princeton University's Woodrow Wilson School and the 2002...