1. Learning from foreign subsidiaries: an empirical investigation of headquarters' benefit from reverse knowledge transfers;T C Ambos;International Business Review,2006
2. The Economic Implications of Learning by Doing;K J Arrow;The Review of Economic Studies,1962
3. Enterprise strategies and barriers to innovation;A Arundel;Innovation measurement and policies,1997
4. The geography of innovation: regional innovation systems;B Asheim;The Oxford Handbook of Innovation,2005
5. R&D Spillovers and the Geography of Innovation and Production;D B Audretsch;The American Economic Review,1996