1. Centre for Innovation, Research and Competence in the Learning Economy (CIRCLE), Lund University, Sölvegatan 16, Lund, Sweden
2. Deusto Business School, University of Deusto, Camino de Mundaiz 50, Donostia-San Sebastian, Spain
3. European Commission, Joint Research Centre (JRC), Directorate B−Growth and Innovation, Territorial Development Unit, Edificio Expo, Inca Garcilaso 3, Seville, Spain
4. Departamento de Análisis Económico, Teoría Económica e Historia Económica, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 5, Madrid, Spain