Table 5.

Path parameter estimation results of the mediating effect test.

Research hypothesis: Mediation path	Indirect effect	Direct effect	Total effect	LLCL	ULCL	Mediating effect
H5a: EC→WTP→TBP	0.022	0.052	0.240	0.078	0.166	Established
H5b: EE→WTP→TBP	0.018	−0.008	0.199	0.055	0.126	Established
H5c: EV→→WTP→TBP	0.015	−0.074	0.035	0.023	0.084	Established
H5d: ES→→WTP→TBP	0.024	0.084	0.275	0.090	0.184	Established

LLCL is the lower limit of the 95% confidence interval; ULCI is the upper limit of the 95% confidence interval.