Many people call him the smartest economist in America:
“Kevin is far and away the smartest guy in the field,” says Freakonomics
author Steven Levitt…”Often, the better you get to know these guys, the less
ingenious they seem. It’s just the opposite with Kevin. Not only is he
widely regarded as the smartest economist on earth, but he can also fix
The article also explains why every one of Murphy’s 60-plus papers is co-authored. The pointer is from Craig Newmark, and also from Steve Levitt.
Addendum: Try also Levitt and Dubner on the economics of weather.