Variable

Model 1

Model 2

Model 3

Model 4

Model 5

Firm’s Scale

0.186***

0.088***

0.082***

0.076***

−0.045**

(0.000)

(0.002)

(0.009)

(0.009)

(0.017)

Firm’s Age

−0.003

−0.004

0.000

0.003

0.002

(0.672)

(0.547)

(0.967)

(0.672)

(0.730)

State-Owned Enterprise

−0.511**

−0.104

−0.097

−0.060

0.209

(0.044)

(0.641)

(0.677)

(0.776)

(0.316)

Foreign Enterprise

−0.609*

−0.302

−0.324

−0.284

−0.054

(0.093)

(0.347)

(0.327)

(0.355)

(0.859)

Joint Enterprise

−0.948**

−0.571

−0.472

−0.418

−0.313

(0.036)

(0.157)

(0.253)

(0.278)

(0.415)

Private Enterprise

−0.136

−0.026

0.081

−0.083

−0.081

(0.617)

(0.912)

(0.742)

(0.712)

(0.719)

Network Centrality

0.303***

0.788***

0.173***

0.595***

(0.000)

(0.000)

(0.000)

(0.000)

Structural Holes

1.671***

0.787***

0.165**

(0.000)

(0.001)

(0.041)

Technical Distance

0.603***

0.306***

(0.000)

(0.002)

Technical Distance ^2

−0.872***

0.075

(0.001)

(0.310)

Network Centrality ´ Technical Distance

−0.304**

(0.038)

Structural Holes ´ Technical Distance

0.347***

(0.000)

Constant term

−0.094

0.109

0.208

0.174

1.323***

(0.828)

(0.771)

(0.605)

(0.588)

(0.000)

alpha

0.727***

0.462***

0.504***

0.365***

0.349***

Log likelihood

−464.463

−427.418

−437.586

−414.341

−411.255

LR Chi-square

54.17***

138.26***

107.92***

154.41***

160.5***

Pseudo R²

0.0551

0.1305

0.1098

0.1571

0.1643