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Table 3 The estimations of threshold value and confidence interval

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

Threshold Estimate 95 % confidence interval
Eastern   
 λ1 1.254 [1.061, 2.163]
 λ2 2.163 [0.820, 2.502]
Central   
 λ1 1.516 [1.336, 1.866]
 λ2 2.694 [1.365, 2.694]
Western   
 λ1 1.635 [0.642, 1.758]
 λ2 2.714 [2.670, 3.594]