| 混合最小二乘 | 时间固定效应 | 空间固定效应 | 时空双固定效应 |
进出口总额 | 0.277553***(5.205799) | 0.691229***(13.552375) | 0.297826***(6.394191) | 0.526963***(15.102865) |
外商直接投资 | 5.670457***(10.845379) | 4.245129***(10.518876) | 4.518339***(9.691177) | 2.178887***(7.673656) |
intercept | 3944.849976***(17.186250) |
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sigma^2 | 19629700.81 | 7783975.001 | 14963697.86 | 3503706.945 |
R-squared | 0.5643 | 0.8269 | 0.6672 | 0.9221 |
Log L | −4.71E+03 | −4.49E+03 | −4.65E+03 | −4.30E+03 |
LM spatial lag | 187.8353*** | 444.2253*** | 44.0260*** | 60.3739*** |
LM spatial error | 121.8039*** | 292.6840*** | 32.4102*** | 48.3901*** |
robust LM spatial lag | 67.2784*** | 157.2701*** | 12.03997*** | 13.1632*** |
robust LM spatial error | 1.2471 | 5.7288** | 0.4241 | 1.1795 |