Stern S, Furman J L, Porter M E.The Determinants of National Innovative Capacity[J].Research Policy, 2002, 31(6):899-933.
[3]
Riddel M, Schwer R K.Regional Innovative Capacity with Endogenous Employment: Empirical Evidence from the US [J].The Review of Regional Studies, 2003, 33(1):73-84.
[4]
Jaffe A B．Real Effects of Academic Research[J].American Economic Review，1989，79(9):57-70.
[5]
Feldman M, Florida R．The Geographic Sources of Innovation: Technological Infrastructure and Product Innovation in the United States[J].Annals of the Association of American Geographers，1994，84(2):21-29.
