4Roper, S. , Dundas. N.H. , Knowledge stock, knowledge flows and innovation: Evidence from matched patents and innovation panel data [J] . Research Policy, 2015 ( 44 ) : 1327-1340.
5Wang et al. The evolving nature of China' s regional innovation system: insights from an exploration-exploitation approach [J]. Technological Forecasting & Social Change, 2015(7) :1-13.
6Ikujiro Nonaka, Noboru Konno. The concept of " Ba": building a foundation for knowledge creation [J]. California Management Review, 1998 (3) :40-53.
8Gordon, I.R., McCann, P., Innovation, agglomeration, and regional development [J]. Journal of Economic Geography, 2005 ( 5 ) :523-543.
9Rodriguez-Pose, A., Crescenzi, R., Research and development, spillovers, innovation systems, and the genesis of regional growth in Europe [J] . Reg. Stud, 2008 ( 1 ) : 51-67.
10Wathins, A. et al. , National innovation systems and intermediary role of industry associations in building institutional capacities for innovation in developing countries: A critical review of the literature [J l. Research Policy, 2015 (44) : 1407-1418.
