Abstract
In the face of increasing environmental pressures, environmentally friendly behaviour can help companies achieve truly sustainable growth. The issue of how to promote environmental behaviour among employees is a new challenge for leaders. However, studies do not systematically reveal the mechanisms of the effects of self-sacrificial leadership on employees' organisational citizenship behaviour for the environment (OCBE). Based on social learning theory and the attitude-behaviour-context model, we investigated the impact of self-sacrificial leadership on employees' OCBE by focusing on the mediating role of the corporate social responsibility (CSR) as perceived by employees, and the moderating role of the pro-environmental organisational climate (PEOC). The results of a field survey of 461 employees (small- and medium-sized enterprises) in China indicate that self-sacrificial leadership was positively related to employees' OCBE; this relationship was partially mediated by employees' perception of CSR. Moreover, PEOC strengthened the effect of employees' perceived CSR on OCBE, and the mediating effect of employees' perceived CSR on the relationship between self-sacrificial leadership and OCBE. Our findings not only help scholars understand the mechanism of the effect of self-sacrificial leadership on employees' OCBE, but also provide insights for recommending integrated management models, social responsibility, and environmental protection.