| 变量 | (1) | (2) | (3) | (4) | (5) | (6) |
| IS | lnCO2 | Gtech | lnCO2 | FS | lnCO2 | |
| did | 0.234*** | −0.128*** | −0.181*** | −0.125*** |
|
|
|
| (−4.85) | (−3.43) | (−3.33) | (−3.57) |
|
|
| IS |
| −0.812* |
|
|
|
|
|
|
| (−1.95) |
|
|
|
|
| Gtech |
|
|
| 0.178*** | 2.03E − 06** | −8.70E − 06* |
|
|
|
|
| (−4.6) | (2.27) | (−1.77) |
| FS |
|
|
|
|
| −0.091 |
|
|
|
|
|
|
| (−0.3) |
| 控制变量 | 是 | 是 | 是 | 是 | 是 | 是 |
| 省份固定效应 | 是 | 是 | 是 | 是 | 是 | 是 |
| 年份固定效应 | 是 | 是 | 是 | 是 | 是 | 是 |
| R2 | 0.929 | 0.972 | 0.982 | 0.973 | 0.94 | 0.970 |
| 观测值 | 360 | 360 | 360 | 360 | 360 | 360 |