[Retracted] Foreign Direct Investment, Regional Innovation, and Green Economic Efficiency: An Empirical Test Based on the Investigation of Intermediary Effect and Threshold Effect

Table 4

Empirical test of regional heterogeneity.

Interpretation variables	East	Center	West
	1	2	3
LnGECMit−1	0.6397	0.5934	0.9231
	[3.19]	[4.28]	[1.28]
LnFDIit	0.0345	0.1411	0.0342
	[2.10]	[3.51]	[0.20]
LnINit	0.0362	−0.0175	0.0443
	[2.07]	[−1.23]	[0.22]
LnSECDit	−0.0852	0.0024	−0.1450
	[−2.46]	[0.02]	[−0.40]
LnRDit	−0.0011	−0.0136	−0.0192
	[−0.14]	[−2.07]	[−0.25]
LnGGPAYit	0.0028	−0.3051	−0.0414
	[0.10]	[−2.09]	[−0.09]
CONS	0.1084	1.9121	1.2626
	(0.011)	[3.39]	[0.25]
AR(2)	−0.7100	−0.3800	0.7400
	(0.480)	(0.703)	(0.460)
Hansen	6.6000	3.0400	4.2600
	(0.999)	(0.386)	(1.000)
Individual effects	Control	Control	Control
F	57.8200	12.2600	5.6600
	(0.000)	(0.001)	(0.019)