Table 6 .Regression results of the spatial econometric model.

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

Variables

Fixed effect SDM model

SEM model

SAR model

Inpatent

− 0.20*** (0.08)

− 0.16*** (0.05)

− 0.16*** (0.05)

Inhedu

− 1.05*** (0.22)

− 1.09*** (0.21)

− 0.97*** (0.22)

rd

− 0.16** (0.09)

− 0.22*** (0.08)

− 0.19** (0.08)

urban

− 0.07*** (0.01)

− 0.02*** (0.01)

− 0.04*** (0.01)

Intec

1.49*** (0.12)

1.33*** (0.12)

1.41*** (0.12)

trand

0.19*** (0.29)

− 0.36*** (0.26)

− 0.26*** (0.27)

Log-likelihood

− 17.91

− 31.21

− 35.54

R2

0.71

0.68

0.67

Observations

330

330

330

Number of code

30

30

30

  1. The values in brackets in the table are the Z statistic values of the spatial econometric model, the same as below.
  2. Standard errors in parentheses ***p < 0.01, **p < 0.05, *p < 0.1.