共 10 条
[6]
The determinants of regional innovation in Europe: A combined factorial and regression knowledge production function approach[J] . Mikel Buesa,Joost Heijs,Thomas Baumert. Research Policy . 2010 (6)
[7]
The U.S. patent system in transition: policy innovation and the innovation process[J] . Adam B Jaffe. Research Policy . 2000 (4)
[8]
VARYING-COEFFICIENT MODELS
[J].
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-METHODOLOGICAL,
1993, 55 (04)
:757-796
[9]
Patent Statistics as Economic Indicators: A Survey[J] . Zvi Griliches. Journal of Economic Literature . 1990 (4)
[10]
Statistical estimation in varying coefficient models .2 Jianqing Fan,Wenyang Zhang. The Annals of Statistics . 1999