1. CREA, Université du Luxembourg, Luxembourg; and GREThA (UMR CNRS 5113), University of Bordeaux, Bordeaux, France.
2. Copernicus Institute of Sustainable Development, Innovation Studies Group, Utrecht University, Utrecht, the Netherlands; and Center for Innovation Systems & Policy, AIT Austrian Institute of Technology, Vienna, Austria.
3. Center for Innovation Systems & Policy, AIT Austrian Institute of Technology, Vienna, Austria; and Vienna University of Economics and Business (WU), Institute for Economic Geography and GIScience, Vienna, Austria.