1. Economic Geography, University of Groningen, Groningen, the Netherlands
2. Chair of Innovation Economics, Technical University of Berlin, Berlin, Germany
3. istari.ai, Mannheim, Germany
4. ZEW Centre for European Economic Research, Mannheim, Germany
5. Z_GIS, University of Salzburg, Salzburg, Austria
6. Center for Geographic Analysis, Harvard University, Cambridge, MA, USA
7. Department of Econometrics and Statistics, Justus-Liebig-University, Gießen, Germany