共 10 条
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
Productivity; R and D; and Basic Research at the Firm Level in the 1970's[J] Zvi Griliches The American Economic Review 1986,
[9]
高等计量经济学[M] 李子奈;叶阿忠编著; 清华大学出版社 2000,
[10]
Fully Modfied OLS for Heterogeneous Cointegrated Panels Pedroni; P; Advances in Econometrics 1999,

