lnCO2 | lnCI | |||
(1) | (2) | (3) | (4) | |
Index ×Period | −0.374*** (0.101) | −0.304*** (0.085) | −0.402*** (0.094) | −0.345*** (0.095) |
ERI | 8.068** (3.855) | 6.487** (3.066) | ||
OS | −0.371** (0.172) | −0.130 (0.241) | ||
KL | −3.073** (1.201) | −2.366* (1.229) | ||
R&D | 2.580 (6.970) | −4.988 (7.721) | ||
FD | 2.054* (1.086) | 1.760* (1.038) | ||
IS | 1.220 (0.837) | 2.281** (0.950) | ||
_cons | 4.453*** (0.104) | 4.685*** (0.197) | 1.253*** (0.105) | 1.221*** (0.230) |
年份固定效应 | 是 | 是 | 是 | 是 |
省市固定效应 | 是 | 是 | 是 | 是 |
区域与年份交互效应 | 是 | 是 | 是 | 是 |
样本数 | 600 | 600 | 600 | 600 |
R2 | 0.912 | 0.927 | 0.741 | 0.774 |