共 6 条
[1]
Technological Diffusion, Convergence, and Growth[J] . Robert J. Barro,Xavier Sala-i-Martin.Journal of Economic Growth . 1997 (1)
[2]
The Search for R&D Sp illovers .2 G riliches Z. Scan-d inavian Journal of Econom ics,Supp lem ent . 1992
[3]
Un iversities AsA Source O f Comm erc ial Technology:A Detailed Analy-sis O fUn iversity Patenting,1965-1988 .2 Henderson R,Jaffe A,Trajtenberg M. Review ofEconom ics and Statistics,February . 1998
[4]
North South R&DSp illovers .2 Coe D,Helpm an E,Hoffm aister A. Econom ic Journal,January . 1997
[5]
International R&D Sp illovers .2 Coe D,Helpm an E. European Econom ic Review,M ay . 1995
[6]
Evidence from Patentsand Patent C itations on the Impact of NASA and O therFederal Labs on Comm erc ial Innovation .2 Jaffe A,Fogarty M,Banks B. Journal ofIndustrial Econom ics,June . 1998