Table 2: Tests of mediating effects with moderation (N=349).
Degree of adjustment
variable
Conditional Indirect Effect Moderated Mediator
Estimate Boot SE BC 95% CI INDEX S.E. BC 95% CI
Low GHRM 0.1011 0.0428 0.0186 0.1881
0.0137 0.096 0.0001 0.0362
Medium GHRM 0.1102 0.0462 0.02004 0.2035
High GHRM 0.1236 0.0523 0.0203 0.2298
Note: This study uses bootstrap for random sampling 5000 times.
so hypothesis 3 is supported; in model 6, employee
autonomy motivation has a significant positive effect
on employee green behavior (β=0.054, p<0.01), so
hypothesis 2 is supported; after adding the mediating
variable (autonomy motivation), the effect of green
climate on employee green behavior (β=0.224,
p<0.01) in model 7 remains significant, and
employee autonomy motivation also has a significant
positive effect on employee green behavior (β=0.186,
p<0.01). Therefore, hypothesis 4 was supported.
Third, the moderating effect test, i.e., the
moderating effect of green HRM between green
climate and employee autonomy motivation. In
Model 3, after adding the moderating variable (green
HRM), green climate still has a significant positive
effect on employee autonomy motivation (β=0.595,
p<0.01). Also, after the interaction of green climate
and green HRM, it shows a significant positive effect
on employee autonomy motivation (β=0.104,
p<0.05), so hypothesis 5 is supported.
Also, the point estimate of the mediating effect
with moderation is 0.0137 and a 95% confidence
interval of [0.0001, 0.0362], excluding zero. That
means, as the value of green HRM changes from one
standard deviation below the mean to one standard
deviation above the mean of the rubric, the mediating
role of employee autonomy motivation increases
significantly, thus hypothesis 6 is supported.
5 DISCUSSION
5.1 Theoretical Implications
The study improves the influence mechanisms
affecting employee green behavior and provides an
empirical evidence of self-determination theory in
employee psychology and behavior research.
Besides, by exploring the moderating role of green
HRM, it provides a theoretical basis for how green
policies can guide and promote employee green
behaviors, and provides new perspectives for
exploring environmentally sustainable development
strategies at the micro level.
5.2 Practical Implications
Since green climate can have a positive impact on
employee green behavior, companies could
participate in building an pro-environmental culture
and team climate, so that employees can be
influenced in daily work. In addition, as the
moderating effects of green HRM are verified,
companies could adopt appropriate recruitment
strategies to attract employees who share the same
environmental values as the organization.
5.3 Limitations and Future Research
Due to reality factors, this study still has some
limitations. Firstly, this study only used employees’
self-assessment. Self-evaluation from a single source
may affect the authenticity and accuracy of the data.
Future research can use multi-source data, such as
evaluation of leaders and colleagues.
Secondly, Autonomous motivation is not the only
path for employees to produce green behavior, the
motivation that drives employees to show
environmental behaviors in the workplace may also
include factors such as employees’ impression
management motivation, which can be explored in
future studies.
6 CONCLUSION
This study obtained the following conclusions: first,
green climate can positively influence employee
green behavior; second, autonomy motivation can
positively influence employee green behavior; third,
autonomy motivation shows a mediating role in the
influence of green climate on employee green
behavior; fourth, green HRM can positively
moderate the influence of green behavior and
enhance the mediating role of autonomy motivation.
Therefore, we suggest that organizations could work
on the development of an environmentally friendly
society by building the green climate, and suggest
that future research could explore other mechanisms