Table 3.
Estimation results of factors affecting changes in green total factor productivity.
| Variables | Model (1) | Model (2) | Model (3) | Model (4) | Model (5) |
|---|---|---|---|---|---|
| GTFP | GPTC | GPEC | GSTC | GSEC | |
| SIR |
−0.5598*** (−2.1480) |
−0.0476 (−0.1013) |
−0.0828 (−0.4371) |
0.0587 (0.1731) |
0.1208 (0.2640) |
| TIR |
0.5371*** (2.0758) |
0.2163 (0.4632) |
−0.1162 (−0.6296) |
0.0087 (0.0263) |
0.3103** (0.6798) |
| TECG |
−0.0071** (−2.3923) |
0.0029 (0.5546) |
−0.0002 (−0.1656) |
−0.0049* (−0.9225) |
−0.0023 (−0.4228) |
| EUII |
−0.0007 (−0.5932) |
0.0018 (0.8253) |
0.0005 (0.6819) |
−0.0007 (−0.5581) |
0.0017 (0.7391) |
| PCWC |
−0.0001 (-0.9846) |
0.0001 (0.5712) |
−1.73E−06 (−0.0276) |
4.90E−05 (0.4387) |
−0.0002 (−0.8534) |
| FDI |
0.0451** (2.1236) |
0.0102 (0.2651) |
0.0091 (0.5271) |
−0.0131 (−0.4233) |
0.0229* (0.9269) |
| EDU |
−0.4988 (−1.2936) |
0.4957* (0.7121) |
−0.0170 (−0.0733) |
0.1819 (0.4383) |
0.7857** (1.0618) |
| R&D |
4.4786** 2.4839) |
7.4667*** (2.2939) |
1.3040 (1.7683) |
−1.7409 (−1.3197) |
4.7420** (1.3185) |
| ENVL |
−0.0443 (−0.0149) |
−8.3739** (−1.5548) |
−2.0073 (−1.1931) |
1.4023 (0.4659) |
−6.2524* (−1.2330) |
| Observations | 252 | 252 | 252 | 252 | 252 |
| Individual fixation | YES | YES | YES | YES | YES |
| Fixed time | NO | NO | NO | NO | NO |
***, **, *respectively represent the significance level of 1%, 5%, and 10%, and the standard deviation of cluster robustness is in parentheses, and Observations represent the number of samples.