| 变量 | SALE |
| Cons | −36.225 |
| DT | 2.030*** |
| DT2 | −2.011*** |
| Size | 0.319*** |
| Age | 0.009 |
| Soe | 0.022** |
| Year/Company | control |
| Adjust-R2 | 0.106 |
| N | 8475 |
| F值 | 202.282*** |