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

Table 5

Empirical test of the mediating effect.

Variables	1	2	3
	LnGECMit	LnINit	LnGECMit
LnFDIit	0.0669	0.3037	0.0587
	[3.06]	[4.34]	[2.38]
LnINit	—	—	0.0394
	—	—	[1.73]
LnGECMit−1	0.6892	1.1262	0.5170
	[7.36]	[1.48]	[5.16]
LnSECDit	−0.1456	0.4393	−0.1792
	[−3.74]	[1.92]	[−4.24]
LnGGPAYit	0.0472	1.0455	0.0253
	[1.18]	[3.24]	[0.57]
LnRDit	0.0006	0.0071	−0.0001
	[0.11]	[0.38]	[−0.03]
CONS	0.4876	−3.6150	0.5823
	[2.25]	[−2.72]	[2.41]
AR(2)	0.2100	0.7400	−0.0700
	(0.834)	(0.461)	(0.945)
Hansen	25.7700	22.5500	23.7100
	(0.174)	(0.258)	(0.208)
Individual effects	Control	Control	Control
F	30.4900	92.0100	28.6400
	(0.000)	(0.000)	(0.000)