Table 3 ERGM model fitting results.

From: Evolutionary characteristics and driving factors of innovative cooperation networks in the field of CCUS technology in China

Variable type

Explanatory variable

Stage 1

(1988–2007)

Stage 2

(2008–2011)

Stage 3

(2012–2018)

Stage 4

(2019–2021)

Coe.

Std.

Coe.

Std.

Coe.

Std.

Coe.

Std.

Endogenous structure drive

Edges

−0.688

2.493

−5.945*

2.398

−5.679***

0.632

−5.491***

0.482

Gwdegree

/

/

9.456***

2.134

9.798***

1.380

6.941***

0.630

Gwesp

/

/

3.043***

0.713

2.847***

0.264

3.143***

0.295

Node assortment drive

Area_Homo

2.925***

0.711

2.467***

0.434

1.959***

0.168

2.221***

0.173

Org_Homo

−0.409

0.739

−0.717

0.592

0.091

0.236

0.521*

0.252

Node attribute drive

R$D_cap

0.033

0.081

0.149***

0.044

−0.003***

0.001

−0.004***

0.001

SH_hie

1.005

1.032

−3.099.

1.589

−3.459***

0.876

−1.628***

0.446

SH_eff

−2.783

2.310

−2.502

2.005

−1.823***

0.483

−2.924***

0.388

 

AIC

84.9

125.1

848.9

1094

 

BIC

105.1

161.1

907.1

1155

  1. Note: *** indicates p < 0.001, ** indicates p < 0.01, * indicates p < 0.05, and “.” indicates p < 0.1.
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