(1)

(2)

(3)

te

0.172***

0.031***

0.163***

(0.061)

(0.004)

(0.061)

sa

0.541***

(0.098)

是否控制变量

Yes

Yes

Yes

_cons

−0.612***

−2.552***

0.777**

(0.228)

(0.014)

(0.341)

N

26698

29190

26687

R²

0.018

0.805

0.019