Table 10 Threshold regression results.

From: Threshold effect of technological innovation on carbon emission intensity based on multi-source heterogeneous data

Variables

Economic development level

Inhedu

− 0.48*** (0.15)

rd

− 0.19** (0.08)

Intce

0.97*** (0.13)

urban

− 0.96*** (0.27)

trand

0.04 (0.05)

Inpgdp ≤ \({\upgamma }_{1}\)

− 0.10*** (0.03)

\({\upgamma }_{1}\)≤Inpgdp ≤ \({\upgamma }_{2}\)

− 0.15*** (0.03)

Inpgdp ≥ \({\upgamma }_{2}\)

− 0.21*** (0.03)

Constant

− 2.92** (1.19)

Observations

330

Number of code

30

R-squared

0.83

  1. Robust standard errors in parentheses ***p < 0.01, **p < 0.05, *p < 0.1.
Back to article page