"People call it stress-baking," Brian Chesky said. "If that's the case, I'm going to be a Michelin chef pretty soon, because I got enough stress to do a lot of baking." That's no surprise given ...

On a dreary morning more than 20 years ago, I was a resident in internal medicine putting in 80-hour workweeks for what amounted to about $5 per hour when I passed through the revolving door of ...