Jonah Berger M.D. is a marketing professor at the Wharton School at the University of Pennsylvania and author of the recent New York Times and Wall Street Journal bestsellerContagious: Why Things Catch On. Dr. Berger has spent over 15 years studying how social influence works and how it drives products and ideas to catch on. He’s published dozens of articles in top-tier academic journals, consulted for a variety of Fortune 500 companies, and popular outlets like the New York Times andHarvard Business Review often cover his work. What makes you choose the choices you think you’re choosing? What is the determining factor in your decision making? These are just a couple of the questions we answer in this fascinating episode.