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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]

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