1. Institute of Information Systems and Marketing Karlsruhe Institute of Technology Fritz‐Erler‐Str. 23 Karlsruhe Germany
2. Chair of Internet and Telecommunications Business University of Passau Dr.‐Hans‐Kapfinger‐Str. 12 Passau Germany
3. Research Group Data Policies University of Passau Dr.‐Hans‐Kapfinger‐Str. 12 Passau Germany