Table 3.

Hierarchical regression analysis results of variables.

Variables	Perceived CSR		OCBE
	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6	Model 7
Control variables
Gender	−0.11	−0.09	−0.04	−0.04	0.04	−0.02	−0.02
Age	0.05	0.06	0.00	0.02	−0.01	0.01	0.01
Job tenure	−0.01	−0.00	−0.04	−0.02	−0.02	−0.02	−0.02
Education level	−0.01	−0.00	0.03	0.03	0.04	0.01	0.01
Independent variables
SSL		0.20 **		0.29 **	0.19 **
Mediator
Employees’ perceived CSR					0.48 **	0.05 **	0.04 **
Moderator
PEOC						0.47 **	0.45 **
Interaction effect
PEOC× Employees’ perceived CSR							0.04 **
R2	0.03	0.12	0.01	0.18	0.38	0.83	0.87
ΔR2	—	0.09 **	—	0.17 **	0.20 **	a 0.82 **	0.04 **

Note: ** p < 0.01. ^a compared to model 3. SSL represents self-sacrificial leadership, CSR represents corporate social responsibility, PEOC represents pro-environmental organisational climate, and OCBE represents organisational citizenship behaviour for the environment.