| (1) 变量 | (2) 估计系数 |
|
| −0.542* |
| (−1.73) | |
| Const | 0 .456* |
| (−1.11) | |
|
| −0.672* |
| (−1.87) | |
|
| 0.149** |
| (−2.42) | |
|
| −0.243 |
| (−0.87) | |
|
| −12.621** |
| (−2.66) | |
|
| −0.897 |
| (−1.45) | |
|
| 0 .752* |
| (−1.79) | |
| Year / Industry / cluster | Yes |
| F(P value) | 8.72 |
| (0.00) | |
| N | 4122 |
| adj. R2 | 0.094 |