变量 | (1) | (2) | (3) | (4) | (5) |
subsidy_2 | 0.796*** (42.804) | 0.346*** (16.259) | 0.187*** (6.028) | 0.220*** (7.613) | 0.084*** (3.708) |
lnl |
| 0.253*** (45.209) | 0.244*** (43.340) | 0.241*** (42.515) | 0.102*** (15.186) |
age |
| 0.438*** (19.006) | −0.011 (−0.332) | −0.071** (−2.246) | −0.148** (−2.248) |
leverage |
| −0.104*** (−3.506) | −0.057* (−1.934) | −0.201*** (−7.110) | −0.356*** (−13.341) |
klr |
| 0.003*** (29.586) | 0.003*** (27.927) | 0.004*** (30.668) | 0.002*** (19.825) |
常数项 | 13.122*** (828.040) | 10.165*** (135.667) | 11.588*** (107.102) | 11.817*** (115.700) | 13.353*** (71.042) |
控制时间效应 | 否 | 否 | 是 | 是 | 是 |
控制行业效应 | 否 | 否 | 否 | 是 | 是 |
控制个体效应 | 否 | 否 | 否 | 否 | 是 |
样本量 | 13,878 | 13,878 | 13,878 | 13,878 | 13,878 |
Adj_R2 | 0.117 | 0.267 | 0.288 | 0.404 | 0.713 |