Table 5 QAP regression results in 2006 and 2020. The significance ofthese symbols should be clearly stated, indicating their meaning in the context of the data presented.

From: Coupling coordination and spatial network characteristics of carbon emission efficiency and urban green innovation in the Yellow River Basin, China

Variables

2006

2020

YRB

Upstream

Midstream

Downstream

YRB

Upstream

Midstream

Downstream

ADJ

0.061***

0.103***

0.081***

0.163***

0.092***

0.141***

0.098***

0.112***

IS

0.107***

− 0.089***

0.085***

− 0.004***

0.126***

0.142***

0.094***

0.137***

POPS

− 0.083***

0.046***

0.014***

− 0.053***

0.159***

0.057***

0.032***

0.038***

URB

0.116***

0.284***

0.056***

0.259***

0.269***

0.327***

0.246***

0.281***

DIG

0.007***

0.001***

0.000***

0.003***

0.085**

0.066***

0.012***

0.079***

EI

− 0.094***

− 0.105**

0.031***

0.057***

0.101***

0.062***

0.043***

0.072***

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