变量 |
模型(1) |
模型(2) |
模型(3) |
模型(4) |
模型(5) |
ppe |
−0.002 (−0.013) |
−0.428 (−1.584) |
−0.757** (−2.295) |
−0.699** (−2.111) |
−0.677** (−2.058) |
ppe2 |
0.028 (1.302) |
0.044* (1.759) |
0.041* (1.687) |
0.037 (1.498) |
|
fd_zc |
−0.094*** (−2.787) |
−0.094*** (−2.826) |
−0.113*** (−4.890) |
||
fd_sr |
−0.115*** (−3.026) |
||||
fd_zyd |
0.008 (0.834) |
||||
lnrjgdp |
0.140* (1.662) |
0.137* (1.668) |
0.120 (1.532) |
||
cyjg |
0.028 (1.155) |
0.031 (1.324) |
0.041* (1.865) |
||
yswsr |
−0.014 (−0.654) |
−0.014 (−0.631) |
−0.016 (−0.750) |
||
kjcyrs |
−0.086** (−2.541) |
−0.088*** (−2.643) |
−0.102*** (−2.928) |
||
zfgm |
0.736** (2.523) |
0.742*** (2.752) |
0.484*** (2.618) |
||
year |
0.907*** (43.69) |
0.907*** (43.64) |
0.906*** (22.05) |
0.914*** (23.40) |
0.946*** (25.36) |
Constant |
YES |
YES |
YES |
YES |
YES |
时点固定 |
YES |
YES |
YES |
YES |
YES |
个体固定 |
YES |
YES |
YES |
YES |
YES |
观测数 |
4930 |
4930 |
4930 |
4930 |
4930 |
Adj R2 |
0.866 |
0.866 |
0.869 |
0.868 |
0.867 |