| (1) | (2) |
Innovation | Innovation | |
DF | 0.007*** | 0.005* |
(2.62) | (1.69) | |
Size |
| −0.000 |
| (−0.34) | |
Lev |
| −0.009*** |
| (−4.68) | |
Ownership |
| −0.009*** |
| (−2.73) | |
Indep |
| −0.016*** |
| (−3.12) | |
Dual |
| 0.000 |
| (0.42) | |
Fixed |
| 0.009*** |
| (3.09) | |
Audit |
| 0.005*** |
| (3.86) | |
Roa |
| −0.019*** |
| (−18.58) | |
Growth |
| −0.007*** |
| (−13.79) | |
Is |
| −0.007 |
| (−0.62) | |
Pgdp |
| 0.011* |
| (1.77) | |
常数项 | 0.025*** | −0.057 |
(14.18) | (−0.84) | |
时间效应 | YES | YES |
个体效应 | YES | YES |
Within_R2 | 0.052 | 0.109 |
样本量 | 14199 | 14199 |