When To Rob A Bank

Why do educated women get fewer responses on online dating websites? Is buying local food economically efficient? Does bribing kids improve their performance on school tests?

Steven Levitt and Stephen J. Dubner, the quirky geniuses behind Freakonomics, SuperFreakonomics and Think Like a Freak, are back at it. For the last ten years, they’ve used the tools of economics to answer some of our most una...