1. Institute for Technology and Innovation Management, RWTH Aachen University, 52062 Aachen, Germany;
2. Cambridge Judge Business School, Cambridge CB2 1AG, United Kingdom;
3. Raymond A. Mason School of Business, William & Mary, Williamsburg, Virginia 23186;
4. Warwick Business School, Coventry CV4 7AL, United Kingdom;
5. Initiative for the Digital Economy at Exeter, SITE Department, University of Exeter Business School, Exeter EX4 4PU, United Kingdom