Discrete Dynamics in Nature and Society

Research Article

IT Usage and Innovation Performance of SMEs in China: A New Perspective

Table 2

Regression results.


Variables	IP						Flexibility
Variables	Model 1 (OLS)	Model 2 (OLS)	Model 3 (2SLS)	Model 4 (OLS)	Model 5 (OLS)	Model 6 (OLS)	Model 7 (logit)

Constant	2.361 (1.542)	−0.908 (1.566)	−4.779 (1.444)	−1.052 (1.563)	−1.945 (1.769)	−2.067 (1.767)	−0.962 (0.940)
Size	0.528 (0.166)	0.393 (0.166)	0.283 (0.177)	0.3860.166	0.386 (0.166)	0.402 (0.166)	0.090 (0.081)
Age	−0.472 (0.406)	−0.395 (0.396)	−0.105 (0.411)	−0.404 (0.397)	−0.403 (0.397)	−0.394 (0.396)	0.017 (0.178)
State	−0.031(0.008)	−0.013(0.008)	0.018(0.008)	−0.011 (0.008)	−0.010 (0.008)	−0.011 (0.008)	−0.025(0.006)
R&D	5.565 (0.431)	5.136 (0.441)	5.814 (0.441)	5.033 (0.447)	5.008 (0.447)	5.028 (0.447)	0.924 (0.179)
Technology	2.590 (0.483)	2.215 (0.482)	2.712 (0.472)	2.159 (0.481)	2.130 (0.482)	2.144 (0.485)	0.564 (0.222)
Certification	0.750 (0.435)	0.536 (0.432)	0.126 (0.419)	0.476 (0.435)	0.467 (0.435)	0.424 (0.435)	0.454 (0.177)
Export	0.001 (0.007)	0.001 (0.007)	−.005 (0.007)	0.001 (0.007)	0.000 (0.007)	−0.001 (0.007)	0.000 (0.004)
Financing	0.374 (0.239)	0.220 (0.235)	0.130 (0.215)	0.201 (0.235)	0.198 (0.236)	0.204 (0.236)	0.208 (0.110)
Relation	0.083 (0.069)	0.046 (0.068)	0.131 (0.067)	0.042 (0.068)	0.034 (0.069)	0.031 (0.068)	0.094 (0.071)
Gender	−0.157 (0.685)	0.145 (0.674)	0.352 (0.653)	0.178 (0.671)	0.190 (0.672)	0.201 (0.674)	−0.269 (0.281)
Experience	0.054 (0.028)	0.044 (0.027)	−0.004 (0.025)	0.042 (0.027)	0.041 (0.027)	0.043 (0.027)	0.016 (0.012)
ITW		0.525 (0.169)	0.919 (0.324)	0.510 (0.168)	0.495 (0.168)	0.540 (0.169)	0.001 (0.082)
ITF		0.540 (0.240)	0.968 (0.370)	0.450 (0.246)	0.444 (0.246)	0.440 (0.245)	0.798 (0.113)
Flexibility				0.766 (0.442)	0.796 (0.441)	0.777 (0.440)
Human					0.110 (0.109)	0.096 (0.108)
ITW × Human						0.169 (0.100)
ITF × Human						−0.077 (0.127)
Industry-fixed effect	Controlled	Controlled	—	Controlled	Controlled	Controlled	Controlled
City-fixed effect	Controlled	Controlled	—	Controlled	Controlled	Controlled	Controlled
R²/Pseudo R²	0.429	0.444	0.355	0.445	0.446	0.447	0.337
F	41.72	45.77	—	45.28	44.43	43.27	—
Wald chi2	—	—	1476.10	—	—	—	384.65
N	1369	1369	1369	1369	1369	1369	1365

Note., , and ; since the key variables in Model 3 are mean data in city-industry level, the industry-fixed effect and city-fixed effect are not included in the model.