Table 5 QAP regression results.

From: Spatial network analysis of green electricity efficiency dynamics in the Yellow River Basin cities

Variable

2012

2015

2018

2021

Geo

0.221***

0.202***

0.215***

0.233***

Pgdp

0.341***

− 0.001

0.002

0.413***

Ind

0.038***

0.017

0.066**

− 0.004

Env

0.143***

− 0.031

0.014

− 0.092***

Tech

0.089***

0.039

0.043*

− 0.034*

Tem

− 0.122***

− 0.149***

− 0.124***

− 0.087***

Adjustable R2

0.215***

0.078***

0.075***

0.249***

Observations

4692

4692

4692

4692

Random Permutation

6000

6000

6000

6000

  1. Variable coefficients are standardized regression coefficients; *, **, *** indicate significance levels at 10%, 5%, and 1%, respectively.