户主受教育程度

−1.84E−05

0.006

−0.002

(0.008)

(0.011)

(0.012)

家庭人口数

−0.063^***

−0.069^***

−0.053^***

(0.010)

(0.012)

(0.015)

外出务工人数占比

0.847^***

0.838^***

0.881^***

(0.057)

(0.071)

(0.104)

常数项

9.106^***

9.134^***

8.982^***

(0.066)

(0.091)

(0.122)

识别不足检验

(Kleibergen-Paap rk LM statistic)

171.157^***

107.169^***

61.709^***

过度识别检验 (Hansen J statistic)

3.179^*

1.732

2.302

弱工具变量检验 (Cragg-Donald Wald F statistic)

(Kleibergen-Paap rk Wald F statistic)

66.959

128.057

43.519

88.368

21.790

41.549

内生性检验 (C statistic)

20.563^***

8.925^***

10.253^***

样本量

1682

906

776