Table 13 Spatial econometric model robustness test.

From: Digital economy development and carbon emission intensity—mechanisms and evidence from 72 countries

 

(1)

(2)

(5)

(6)

(7)

VARIABLES

Main

Wx

Direct

Indirect

Total

TIMG

4.276***

3.559**

4.305***

3.993**

8.298***

(0.560)

(1.432)

(0.556)

(1.575)

(1.371)

TIMG2

− 3.280***

− 2.092*

− 3.325***

− 2.472*

− 5.797***

(0.493)

(1.270)

(0.467)

(1.456)

(1.295)

gdp_per

− 0.853***

0.326***

− 0.847***

0.296***

− 0.552***

(0.0415)

(0.125)

(0.0425)

(0.110)

(0.110)

old

0.00751

0.150***

0.0100

0.160***

0.170***

(0.0147)

(0.0391)

(0.0159)

(0.0482)

(0.0507)

urban

0.0277***

0.0760***

0.0271***

0.0812***

0.108***

(0.00818)

(0.0180)

(0.00946)

(0.0213)

(0.0230)

trade_open

0.00816

0.190

0.0116

0.192

0.204

(0.0548)

(0.139)

(0.0529)

(0.163)

(0.176)

rho

0.0489

    

(0.0729)

    

sigma2_e

0.00986***

    

(0.000581)

    

Observations

576

576

576

576

576

Number of countries

72

72

72

72

72

Country FE

YES

YES

YES

YES

YES

Time FE

YES

YES

YES

YES

YES

  1. ***, ** and * represent significant regression coefficients at the 1%, 5% and 10% levels, respectively.