Internal Environmental Management

External Green Collaboration

M1

M2

M3

M4

M5

M6

M7

M8

Firm scale

0.055

0.053

0.062

0.071

0.055

0.042

0.084

0.061

Internal Environmental Management

0.149

0.217*

0.279**

External Green Collaboration

0.061

0.079*

0.157**

Competition Intensity

0.123**

0.119**

0.148**

0.129**

Internal Environmental Management * CI

0.113***

External Green Collaboration * CI

0.14**

R²

0.041

0.047

0.217

0.235

0.004

0.158

0.209

0.252

Adjust R²

0.036

0.038

0.195

0.269

0.036

0.127

0.193

0.239

ΔR

0.021

0.060

0.093**

0.23***

0.002

0.11*

0.075**

0.22**

ΔF

2.278

6.993

12.35**

25.531***

2.278

4.967

10.32**

22.891**