| 变量名称 | N | Mean | Sd | Median | Min | Max |
| Inveff | 20318 | 0.037 | 0.038 | 0.026 | 0.000 | 0.212 |
| Overinv | 7478 | 0.047 | 0.059 | 0.027 | 0.000 | 0.792 |
| Underinv | 12840 | 0.033 | 0.028 | 0.026 | 0.000 | 0.339 |
| FC | 20318 | 1.116 | 2.271 | 1.339 | −5.428 | 6.234 |
| MA | 20318 | −0.008 | 0.144 | −0.020 | −0.336 | 0.374 |
| IGAP | 20318 | 3.437 | 1.861 | 2.890 | 1.628 | 13.125 |
| EGAP | 20318 | 0.480 | 0.328 | 0.391 | 0.097 | 1.990 |
| Age | 20318 | 2.283 | 0.661 | 2.303 | 1.099 | 3.296 |
| Lev | 20318 | 0.435 | 0.202 | 0.430 | 0.059 | 0.887 |
| Size | 20318 | 22.307 | 1.258 | 22.120 | 20.078 | 26.191 |
| Indep | 20318 | 0.375 | 0.054 | 0.357 | 0.333 | 0.571 |
| FCF | 20318 | 0.048 | 0.066 | 0.047 | −0.141 | 0.238 |
| TQ | 20318 | 2.229 | 1.429 | 1.769 | 0.890 | 9.093 |
| Growth | 20318 | 0.148 | 0.356 | 0.096 | −0.539 | 2.086 |
| Dual | 20318 | 0.259 | 0.438 | 0.000 | 0.000 | 1.000 |
| Return | 20318 | 0.012 | 0.430 | −0.087 | −0.624 | 1.846 |
| ROA | 20318 | 0.038 | 0.062 | 0.036 | −0.232 | 0.210 |