1. Innovation Studies Centre, Tanaka Business School, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
2. CESPRI & CRORA, Bocconi University, Via Sarfatti 25, 20136 Milan, Italy
3. DASTA, University G. d'Annunzio, Pescara, Italy
4. SPRU, University of Sussex, UK