| 
 | 
 | 
| 
 | 0.0158*** (4.35) | 
| 
 | 0.0474* (2.48) | 
| 
 | −0.0599* (−1.66) | 
| 
 | −0.0781 (−2.57) | 
| 
 | −0.0373 (−2.43) | 
| 
 | 0.0447 (1.08) | 
| 
 | 0.0220*** (3.64) | 
| Constant | 1.0665 | 
| Year | 控制 | 
| Industry | 控制 | 
| N | 1748 | 
| Adj.R2 | 0.2204 |