| 变量 | 样本量 | 均值 | 标准差 | 最小值 | 最大值 |
| AbsINV | 36,360 | 0.0441 | 0.0598 | 1.35e−06 | 1.087 |
| UnderINV | 36,360 | 0.629 | 0.483 | 0 | 1 |
| OverINV | 36,360 | 0.371 | 0.483 | 0 | 1 |
| did | 36,360 | 0.174 | 0.379 | 0 | 1 |
| Post | 36,360 | 0.629 | 0.483 | 0 | 1 |
| Treat | 36,360 | 0.297 | 0.457 | 0 | 1 |
| Size | 36,360 | 21.88 | 1.328 | 15.58 | 28.52 |
| Lev | 36,360 | 0.444 | 0.220 | 0.00708 | 9.699 |
| ROA | 36,356 | 0.0375 | 0.0801 | −1.681 | 0.669 |
| Cashflow | 36,360 | 0.0439 | 0.0817 | −1.938 | 0.876 |
| TobinQ | 35,711 | 2.041 | 2.732 | 0.684 | 259.1 |
| FirmAge | 36,360 | 2.674 | 0.492 | 0 | 3.951 |
| Board | 36,332 | 2.160 | 0.220 | 0 | 3.178 |
| Indep | 36,332 | 0.349 | 0.0952 | 0 | 0.800 |
| Dual | 36,360 | 0.207 | 0.405 | 0 | 1 |
| Top1 | 33,578 | 0.360 | 0.154 | 0.00286 | 0.900 |
| Mshare | 35,209 | 0.0952 | 0.183 | 0 | 3.002 |
| Growth | 36,150 | 4.494 | 712.4 | −1.309 | 134,607 |
| ifhp | 36,360 | 0.297 | 0.457 | 0 | 1 |