Bruce Greenwald Talks to Yahoo Finance about Tesla

Professor Bruce C. N. Greenwald is the Robert Heilbrunn Professor Emeritus of Finance and Asset Management at Columbia Business School and the academic Director of the Heilbrunn Center for Graham & Dodd Investing. Described by the New York Times as "a guru to Wall Street's gurus," Greenwald is an authority on value investing with additional expertise in productivity and the economics of information.