Table 10 Heterogeneity effects by the level of urban digital development.

From: Impact of computing infrastructure on carbon emissions in China

Variable

Low-level

Medium-level

High-level

(1)

(2)

(3)

(4)

(5)

(6)

CI

0.1133**

0.2115

1.2519***

3.0953**

0.0871

− 1.3198

(0.0541)

(0.2206)

(0.3949)

(1.2958)

(0.8848)

(3.2814)

CI2

 

− 0.0322

 

− 2.2869*

 

4.8058

 

(0.0545)

 

(1.2640)

 

(9.4463)

Constant

2.0787***

2.0841***

2.4278***

2.4907***

3.1098***

3.0863***

(0.2570)

(0.2591)

(0.2890)

(0.2930)

(0.4306)

(0.4284)

Control Variable

Yes

Yes

Yes

Yes

Yes

Yes

City fixed effects

Yes

Yes

Yes

Yes

Yes

Yes

Time fixed effects

Yes

Yes

Yes

Yes

Yes

Yes

N

1540

1540

1596

1596

770

770

R2

0.2053

0.2049

0.5179

0.5196

0.4524

0.4520

  1. Values in parentheses are robust standard errors.
  2. *, **, and *** denote significance at the 10%, 5%, and 1% levels, respectively.