| 变量 | (1) | (2) | (3) |
| CCP | 0.0123*** (2.97) | 0.0086** (2.10) | 0.0106** (2.00) |
| CAGE |
| 0.0044 (1.53) | 0.0041 (1.45) |
| SIZE |
| 0.0106*** (4.19) | 0.0108*** (4.27) |
| ROA |
| 0.3586*** (13.40) | 0.3574*** (13.36) |
| LEV |
| 0.0069 (0.49) | 0.0068 (0.49) |
| PPE |
| −0.0160 (−0.90) | −0.0180 (−1.02) |
| INTANG |
| 0.0259 (0.48) | 0.0270 (0.50) |
| TOP1 |
| 0.0454*** (3.24) | 0.0446*** (3.19) |
| INVINC |
| −0.0017 (−1.04) | −0.0017 (−1.05) |
| Growth |
| 0.0075 (1.15) | 0.0078 (1.19) |
| Age |
|
| 0.0001 (0.60) |
| Gender |
|
| −0.0113 (−1.49) |
| Degree |
|
| −0.0020 (−0.43) |
| PC |
|
| −0.0049 (−0.95) |
| Cons | 0.0405 (1.57) | −0.2056*** (−3.76) | −0.2030*** (−3.57) |
| 年份固定效应 | 控制 | 控制 | 控制 |
| 行业固定效应 | 控制 | 控制 | 控制 |
| 样本量 | 9288 | 9288 | 9288 |
| 调整后的R2 | 0.0515 | 0.0818 | 0.0822 |