| 变量 | PSM | 安慰剂检验 | T − 1期解释变量 | T + 1期被解释变量 | 替换解释变量 | |
| (1) | (2) | (3) | (4) | (5) | (6) | |
| DA | DA | DA | DA | DA | DA | |
| DCG | −0.0018*** | 0.0006 | −0.0016** | −0.0013* | −0.0044*** | −0.0028** |
|
| (−2.6679) | (1.2397) | (−2.2789) | (−1.8014) | (−3.0632) | (−2.5568) |
| Control | YES | YES | YES | YES | YES | YES |
| Industry | YES | YES | YES | YES | YES | YES |
| Year | YES | YES | YES | YES | YES | YES |
| _cons | 0.0428** | 0.0593*** | 0.0622*** | 0.1159*** | 0.0560*** | 0.0581*** |
|
| (2.4077) | (3.5547) | (3.5036) | (6.2764) | (3.3501) | (3.4482) |
| N | 11847 | 13264 | 10229 | 10229 | 13264 | 12963 |
| Adj. R2 | 0.1268 | 0.1289 | 0.1185 | 0.1027 | 0.1294 | 0.1283 |