Table 8.
Regional test results of the comprehensive index of environment regulation.
| Eastern region |
Central region |
Western region |
||||
|---|---|---|---|---|---|---|
| (1) |
(2) |
(3) |
(4) |
(5) |
(6) |
|
| IND | IND | IND | IND | IND | IND | |
| ER_2 | 0.016 | −0.003 | 0.007 | 0.065 | 0.018 | 0.081 |
| (1.55) | (-0.07) | (0.58) | (1.15) | (1.40) | (1.31) | |
| ER_22 | 0.000 | −0.001 | −0.001 | |||
| (0.40) | (-1.05) | (-1.03) | ||||
| _cons | 238.102*** | 238.599*** | 222.378*** | 221.110*** | 203.280*** | 202.032*** |
| (115.79) | (99.45) | (190.40) | (131.61) | (153.80) | (112.87) | |
| Control Variables | Yes | Yes | Yes | Yes | Yes | Yes |
| Provincial FE | Yes | Yes | Yes | Yes | Yes | Yes |
| Time FE | Yes | Yes | Yes | Yes | Yes | Yes |
| N | 1616 | 1616 | 1744 | 1744 | 1216 | 1216 |
| R2 | 0.76 | 0.76 | 0.61 | 0.61 | 0.66 | 0.66 |
From the regression results of each model in Table 8, the regression coefficients of the comprehensive index of environment regulation on industrial structure optimization are not significant in either the eastern, central or western regions.