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)

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