Table 6 Robustness test.

From: The impact of digital economy on green total factor productivity considering the labor-technology-pollution factors

 

(1)

(2)

(3)

(4)

(5)

(6)

(7)

gtfp

gtfp

gtfp

gtfp

gtfp

gtfp

gtfp

ide

2.068***

2.091***

2.473***

  

2.549***

2.624***

(0.673)

(0.728)

(0.774)

  

(0.604)

(0.598)

cride

   

2.031**

2.946***

  
   

(0.870)

(0.846)

  

lva

0.909***

0.923***

0.716**

 

0.833***

0.781***

0.538**

(0.215)

(0.168)

(0.281)

 

(0.259)

(0.262)

(0.261)

lrd

0.078

 − 0.061

0.417**

 

0.348**

0.411**

0.516***

(0.154)

(0.135)

(0.172)

 

(0.162)

(0.165)

(0.174)

llab

 − 0.390***

 − 0.325***

 − 0.495**

 

 − 0.475**

 − 0.533***

 − 0.624***

(0.145)

(0.111)

(0.195)

 

(0.185)

(0.184)

(0.174)

lptf

0.085*

0.067*

0.146***

 

0.149***

0.143***

0.162***

(0.044)

(0.036)

(0.046)

 

(0.044)

(0.043)

(0.045)

market

 − 1.647

 − 2.219**

 − 1.187

 

 − 1.515

 − 1.048

 − 0.540

(1.012)

(0.923)

(1.199)

 

(1.143)

(1.131)

(1.145)

open

0.363

0.180

1.530

 

0.057

0.641

0.982

(0.509)

(0.701)

(1.054)

 

(0.523)

(0.512)

(0.652)

_cons

 − 4.681***

 − 4.259***

 − 5.102***

0.384

 − 5.832***

 − 5.170***

 − 3.839**

(1.418)

(1.157)

(1.779)

(0.276)

(1.677)

(1.705)

(1.856)

N

207

161

231

253

253

253

253

R2

0.644

0.645

0.716

0.657

0.719

0.726

0.726

Id FE

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Year FE

Yes

Yes

Yes

Yes

Yes

Yes

Yes

  1. Due to space constraints, the coefficients and significance of the control variables are not shown, but they can be obtained by contacting the author if needed.
  2. Note: ***, **, * denote significant at the 1%, 5% and 10% levels respectively.
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