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This study aims to investigate the relationship between shared leadership and team performance at the team level. Drawing on conservation of resources (COR) theory, the authors examine whether shared leadership is associated with team performance through team positive psychological capital (PsyCap). This study further examines whether task-oriented and relationship-oriented shared leadership affect team performance differently.

Multi-source survey data were obtained from 92 team leaders and 319 employees. An aggregation approach was used to analyze the data at the team level.

A high level of shared leadership positively influences team performance through the mediation of team PsyCap. Moreover, relationship-oriented shared leadership is positively associated with team performance through team PsyCap, while task-oriented shared leadership is negatively associated with team performance without the mediating effect of team PsyCap.

By focusing on the negative effects of task-oriented shared leadership and the positive effects of relationship-oriented shared leadership and team PsyCap on team performance, this study suggests new ways to manage team performance effectively and extends shared leadership literature.

This study applied COR theory to analyze the effect of shared leadership mediated by team PsyCap on team performance. It contributes to shared leadership literature by shedding light on the negative effects of task-oriented shared leadership and on the positive aspects of relationship-oriented shared leadership.

The purpose of this paper is to advance our understanding of how psychological capital (PsyCap) influences job performance. The authors do so through adopting a moderated mediation framework. Specifically, the authors investigate the mediation role of informal learning in the PsyCap–job performance relationship and the moderating role of person–environment fit, i.e. the extent to which individual and organizational characteristics are compatible, in influencing the mediation.

The final sample consisted of 221 employees and their supervisors in South Korea.

The authors found that PsyCap had an indirect effect on job performance through informal learning. Moreover, the indirect effect of PsyCap on job performance through informal learning became stronger with low levels of person–organization (PO) and person–job (PJ) fit.

The authors cannot completely rule out the effects of common method bias due to the cross-sectional research design.

The results reinforce the need for managers to understand employees’ level of PsyCap and take actions to enhance it because PsyCap can affect the extent to which individuals engage in informal learning, which in turn influences their job performance.

This paper adds to our understanding of the mechanisms and boundary conditions responsible for the PsyCap–job performance relationship. The authors found that informal learning operates as a mediator and both PO and PJ fit moderate the PsyCap–job performance relationship.