Abstract
The main objective of this study is to examine the effect of self-sacrificial leadership on organizational citizenship behavior within the health sector through a moderated mediation approach. The study has been conducted on nurses working in public hospitals in Sargodha, Pakistan, and data have been collected through a questionnaire survey method. In this study, psychological empowerment is used as a moderator, and psychological wellbeing is used as a mediator between self-sacrificial leadership on organizational citizenship behavior based on the fundamental premise of Conservation of Resource (COR) theory. The data have been analyzed through Partial Least Square Structural Equation Model (PLS-SEM) to examine the hypotheses. Empirical results demonstrated that psychological well-being plays a significant and positive mediating role in the relationship between self-sacrificial leadership and organizational citizenship behavior. The results further explain that nurses' psychological empowerment moderates the mediating effect of psychological well-being between self-sacrificial leadership and organizational citizenship behavior. This study adds to a better understanding of the role of self-sacrificial leadership in encouraging organizational citizenship behavior.