| (36) | (37) | (38) | (39) |
---|---|---|---|---|
Low-polluting industry | High-polluting industry | |||
ER | ER | ER | ER | |
Green × Time | 9.1000** | 8.9881** | 4.6984 | 4.7429 |
 | (3.9438) | (3.8786) | (3.2722) | (3.2776) |
Constant | 7.8335*** |  − 23.3013*** | 9.2949*** |  − 12.3474 |
 | (0.2887) | (7.7116) | (0.4631) | (15.1591) |
Control variables | NO | YES | NO | YES |
Firm fixed effects | YES | YES | YES | YES |
Year fixed effects | YES | YES | YES | YES |
R-squared | 0.0382 | 0.1320 | 0.0621 | 0.1655 |
Observations | 6025 | 6025 | 2468 | 2468 |