Government R&D Investment, Knowledge Accumulation, and Regional Innovation Capability: Evidence of a Threshold Effect Model from China

Table 5

Robustness test estimate.

	Coef.	Std. err	t		95%	Conf. interval
	0.2401	0.0755	3.18	≤0.01	0.0914	0.3889
	7.3946	0.8164	9.06	≤0.001	5.7859	9.0033
	−0.1016	0.0965	−1.05	0.293	−0.2917	0.0885
	−0.0668	0.0438	−1.52	0.129	−0.1532	0.0196
	−154.8469	20.9599	−7.39	0.100	−196.1467	−113.5470
	11.7948	4.6575	2.53	≤0.01	2.6175	20.9721
Cons	10.8113	0.5568	19.42	≤0.001	9.7140	11.9085

Notes: means , means , and means .