Table 6 Moderating effects test.

From: The impact of peer effect of industrial robot application on enterprise carbon emission reduction

 

(1)

(2)

Variables

lnco2

lnco2

hhi

0.239

 

(0.485)

 

hhi * hhi

− 0.024

 

(1.445)

 

lnexposure_mean1

− 0.040***

 

(0.010)

 

hhi * lnexposure_mean1

0.566***

 

(0.182)

 

hhi * hhi * lnexposure_mean1

− 0.139**

 

(0.058)

 

er

 

0.003

 

(0.008)

er * er

 

− 0.588

 

(0.582)

lnexposure_mean2

 

− 0.030***

 

(0.011)

er * lnexposure_mean2

 

− 3.366

 

(6.009)

er * er * lnexposure_mean2

 

− 0.663*

 

(0.354)

lnlabour

0.002

0.002

(0.026)

(0.032)

lnsize

− 0.033

− 0.028

(0.027)

(0.030)

lnage

0.047

− 0.019

(0.057)

(0.062)

cashflow

0.463***

0.423***

(0.105)

(0.099)

roa

− 0.602***

− 0.503***

(0.094)

(0.101)

soe

0.084*

0.059

(0.051)

(0.053)

_cons

6.350***

6.442***

(0.468)

(0.456)

Obs

7267

7267

Firm/year

Yes

Yes

R-squared

0.043

0.036

  1. ***, **, and * indicate significance levels of 1%, 5%, and 10%, respectively, with robust standard errors in brackets.