Robustness test
| Model (1) | Model (2) | Model (3) | |
|---|---|---|---|
| Name of variables | Coef | Coef | Coef |
| DT | 0.0143*** (0.0022) | 0.2712*** (0.044) | 0.3122*** (0.0451) |
| Control variables | Yes | Yes | Yes |
| Add variables | No | Yes | No |
| Time fixed effects | Yes | Yes | Yes |
| Individual fixed effects | Yes | Yes | Yes |
| Constant term | 1.4428*** (0.2461) | 0.9464*** (0.3752) | 1.6862*** (0.2391) |
| Adj R-squared | 0.9782 | 0.9793 | 0.9802 |
| N | 279 | 279 | 243 |
| Model (1) | Model (2) | Model (3) | |
|---|---|---|---|
| Name of variables | Coef | Coef | Coef |
| DT | 0.0143*** | 0.2712*** | 0.3122*** |
| Control variables | Yes | Yes | Yes |
| Add variables | No | Yes | No |
| Time fixed effects | Yes | Yes | Yes |
| Individual fixed effects | Yes | Yes | Yes |
| Constant term | 1.4428*** | 0.9464*** | 1.6862*** |
| Adj | 0.9782 | 0.9793 | 0.9802 |
| 279 | 279 | 243 |
Source(s): Arranged by authors
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