Table 8 Heterogeneity analysis of subdivision index of TIMG index.
From: Digital economy development and carbon emission intensity—mechanisms and evidence from 72 countries
(1) | (2) | (3) | (4) | |
|---|---|---|---|---|
Technology | Infrastructure | Marketing | Governance | |
Variables | co2_efficiency | co2_efficiency | co2_efficiency | co2_efficiency |
TIMG | 2.044*** | 1.619*** | 1.429*** | 3.597*** |
(0.657) | (0.423) | (0.463) | (0.765) | |
TIMG2 | − 2.149*** | − 1.176*** | − 1.053*** | − 2.793*** |
(0.679) | (0.340) | (0.284) | (0.643) | |
gdp_per | − 0.731*** | − 0.770*** | − 0.760*** | − 0.822*** |
(0.0667) | (0.0616) | (0.0609) | (0.0508) | |
old | 0.0128 | 0.0192 | 0.0147 | 0.0224* |
(0.0120) | (0.0122) | (0.0126) | (0.0135) | |
urban | 0.0337*** | 0.0381*** | 0.0364*** | 0.0251*** |
(0.00843) | (0.00848) | (0.00790) | (0.00848) | |
trade_open | 0.137* | 0.117 | 0.150** | 0.135** |
(0.0763) | (0.0748) | (0.0723) | (0.0673) | |
Constant | 10.45*** | 10.46*** | 10.49*** | 11.55*** |
(0.896) | (0.922) | (0.860) | (0.867) | |
turing point of TIMG | 0.476 | 0.363 | 0.368 | 0.643 |
Observations | 564 | 564 | 564 | 564 |
R-squared | 0.981 | 0.981 | 0.981 | 0.984 |
country FE | YES | YES | YES | YES |
Time FE | YES | YES | YES | YES |
