Table 5 Robustness test
From: The impact of carbon emission trading policy on firms’ green innovation in China
Variable | (5) | (6) | (7) | (8) |
|---|---|---|---|---|
Treat × Time | Gpatent | Gutility | Gpatent | |
Treat × Time | 1.515*** (0.5410) | 0.072** (0.0347) | 0.102*** (0.0365) | |
lnVc | − 0.037*** (0.0034) | |||
Control | Yes | Yes | Yes | Yes |
Industry | Yes | Yes | Yes | Yes |
Year | Yes | Yes | Yes | Yes |
Observations | 24,522 | 24,694 | 21,686 | |
Adjust R2 | 0.173 | 0.693 | 0.715 | |
F | 97.68 |