Table 7 Other robustness tests.

From: Does vertical supervision enhance labor productivity? Evidence from China’s central environmental protection inspection

Variables

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

LP_Alter1

LP_Alter2

LP

LP

LP

LP

LP

LP

LP

LP

LP

CEPI

0.027*** (2.76)

0.023** (2.06)

0.030*** (2.88)

0.042*** (3.48)

0.028*** (2.89)

0.029*** (2.94)

0.028*** (2.94)

0.028*** (2.89)

0.039*** (3.48)

0.028** (2.28)

0.024** (2.49)

Reduce

    

0.157** (2.09)

  

0.157** (2.09)

   

Newlegal

     

0.379*** (10.24)

 

0.371*** (9.95)

   

Judiciary

      

0.015

(1.13)

0.015

(1.14)

   

Constant

16.573*** (82.73)

16.282*** (78.20)

16.594*** (84.88)

16.588*** (85.10)

16.577*** (85.13)

16.583*** (85.01)

16.571*** (84.76)

16.564*** (84.87)

16.711*** (71.40)

16.431*** (65.16)

16.581*** (79.49)

Controls

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Year FE

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Firm FE

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Observations

20,746

20,631

20,848

20,848

20,848

20,848

20,848

20,848

14,408

8558

19,629

Adj R2

0.523

0.421

0.521

0.521

0.522

0.521

0.521

0.521

0.515

0.505

0.511

  1. T values are reported in parentheses.
  2. Coefficients marked with **, and *** are significant at 5%, and 1%, respectively.