1. Technology, Operations, and Information Management Division, Babson College, Babson Park, Massachusetts 02457;
2. Technology and Entrepreneurship Center at Harvard, John A. Paulson School of Engineering and Applied Sciences, Cambridge, Massachusetts 02138;
3. Said Business School, University of Oxford, Oxford OX1 1HP, United Kingdom;
4. D’Amore McKim School of Business, Northeastern University, Boston, Massachusetts 02115