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Table 2 The results of the test for threshold effects

From: FDI technology spillover and threshold effect of the technology gap: regional differences in the Chinese industrial sector

Threshold effect F value P value Critical value
1 % 5 % 10 %
Eastern region
 Single threshold 11.144** 0.037 17.089 10.059 6.775
 Double threshold 16.210* 0.057 44.210 18.906 12.017
 Triple threshold −0.000 0.733 0.000 0.000 0.000
Central region
 Single threshold 13.800** 0.013 14.884 8.025 6.232
 Double threshold 57.552*** 0.000 15.150 5.075 0.752
 Triple threshold 0.000 0.313 0.000 0.000 0.000
Western region
 Single threshold 21.920* 0.057 30.285 23.509 18.305
 Double threshold 17.856* 0.073 37.893 20.581 15.877
 Triple threshold 0.000 0.243 0.000 0.000 0.000
  1. The stars *, **, and *** indicate statistical significance at the 10, 5 and 1 % levels, respectively