Table 3 Effects of technological overlap on the scale of international Cooperation in ETs.

From: The impacts of technological overlap on international collaboration in China’s green innovation endeavors

Variables

InvCoijt

(1)

(2)

(3)

Overlapijt−3

0.745***

(3.44)

0.431***

(3.30)

0.335***

(3.49)

InvCoijt−3

 

1.718***

(3.75)

– 0.257

(– 0.57)

Invnumit

 

– 0.002

(-0.74)

 

Invnumjt

 

– 0.002

(– 1.17)

 

FEt,FEi,FEj

Yes

Yes

 

FEit,FEjt,FEij

  

Yes

N_clust

18,166

18,166

18,166

r2_a

0.071

0.110

0.315

N

272,490

272,490

272,490

  1. Note: All standard errors are clustered standard errors at the Chinese and foreign geographical unit pairs level; * p < 0.1, ** p < 0.05, *** p < 0.01. Unless otherwise specified, the same is below.
Back to article page