Producer Services Openness and the Development of Servitization: The Perspective of Two-Way Openness
Table 7
Variable robustness analysis.
Variable
Model 5
Model 6
Model 7
ln jkst
0.004 (0.001)
0.004 (0.002)
0.057 (0.012)
ln fdist
0.017 (0.004)
0.012 (0.003)
0.129 (0.020)
ln ofdist
0.005 (0.002)
0.006 (0.002)
0.012 (0.005)
Rd
0.022 (0.009)
0.040 (0.009)
0.383 (0.056)
Cyjg
0.001 (0)
0.004 (0.001)
0.017 (0.006)
Jzl
0.001 (0)
0.001 (0)
0.004 (0.001)
Yll
0 (0)
0 (0)
0.003(0.002)
Cons
−0.152 (0.041)
−0.151 (0.042)
−1.718 (0.285)
Observation
195
195
195
Id
13
13
13
Hausman
2.47
3.92
5.21
Wald chi2/F
83.27
81.72
185.08
Note. , , and , respectively, represent statistical significance at the level of 1%, 5%, and 10%, and the values in brackets are robust standard errors.
