Table 10 Restricting pollution-intensive firm entry.
From: Does the green patent pre-examination program reduce environmental pollution?
(1) | (2) | (3) | (4) | (5) | (6) | |
|---|---|---|---|---|---|---|
Pollu_firm1 | Pollu_firm2 | Pollu_firm3 | Pollu_firm4 | Pollu_firm5 | Pollu_firm6 | |
DID | −0.1653*** (−2.7973) | −0.1817*** (−4.4347) | −0.1813*** (−4.4293) | −0.0061*** (−5.8783) | −0.0149*** (−6.9098) | −0.0210*** (−7.4548) |
Constant | 2.8464* (3.3059) | 4.9337* (7.5072) | 4.7917* (7.6841) | −0.0326* (−2.8046) | 0.0382 (1.3779) | 0.0056 (0.1591) |
Observations | 2520 | 2520 | 2520 | 2520 | 2520 | 2520 |
R-squared | 0.9380 | 0.9278 | 0.9393 | 0.9096 | 0.8161 | 0.8520 |
Controls | Yes | Yes | Yes | Yes | Yes | Yes |
City FE | Yes | Yes | Yes | Yes | Yes | Yes |
Year FE | Yes | Yes | Yes | Yes | Yes | Yes |
