决定因素 | 联合OLS | 空间固定效应 | 时间固定效应 | 空间和时间固定效应 |
Log(SO2) | 0.214 | 0.291 | 0.129 | 0.179 |
t值 | 9.02e−15 | <2e−16 | 0.0006 | 0.0003 |
Log(NO2) | 0.226 | 0.291 | 0.171 | 0.239 |
t值 | 0.002 | 1.61e−05 | 0.022 | 0.0004 |
Log(日照) | −0.076 | −0.352 | 0.081 | −0.296 |
t值 | 0.491 | 0.0101 | 0.484 | 0.0301 |
Log(人口) | 0.118 | 0.9003 | 0.153 | 0.613 |
t值 | 3.41e−05 | 8.39e−05 | 2.04e−07 | 0.006 |
Log(降水量) | −0.271 | −0.071 | −0.294 | −0.073 |
t值 | 1.86e−09 | 0.052 | 8.8e−11 | 0.0472 |
截距 | 1.908 | −0.436 | 1.558 | 0.576 |
t值 | 0.0001 | 0.627 | 0.001 | 0.511 |
R2 | 0.661 | 0.865 | 0.729 | 0.899 |