Taking behavioral economics from the cocktail party to the boardroom, with dramatic results. Books like Predictably Irrational and Nudge have brought behavioral economics into the mainstream. But while we all marvel at how different-and weird-real people behave compared to the "rational actors" of traditional economics, in the end we go back to business as usual. After all, what do a few laboratory experiments have to do with making a buck? As economist Kay-Yut Chen has shown, quite a bit. Chen started behavioral economics research at Hewlett-Packard, founding the first such "moneylab" at any company, let alone one in the Fortune 500. His groundbreaking research into human behavior has led to tangible results for HP. In fact, he has saved the company millions of dollars by showing how changing the right conditions can make people behave very differently.