变量名

(1)

(2)

(3)

TFP

Lnop

Lncp

Treat × Time

0.088^***

0.151^**

0.261^**

(3.87)

(1.97)

(2.56)

Constant

−2.451^***

−4.048^*

−2.498^***

(−10.24)

(−1.72)

(−3.71)

Control_Var

YES

YES

YES

YearFE

YES

YES

YES

AreaFE

YES

YES

YES

Observations

17,230

17,230

17,230

Adjusted R-squared

0.750

0.023

0.027