How and when do employees hide knowledge from co-workers?

Purpose Drawing on social learning and social cognitive theories, this study aims to examine a multi-level moderated mediation model that tests the mediating effect of moral disengagement (MD: Level 1) between perceived organisational politics (POP: Level 1) and employee knowledge hiding from coworkers (EKHC: Level 1). The authors further propose that supervisor knowledge hiding from employees (SKHE: Level 2) moderates this mediation effect. Design/methodology/approach The authors obtained multi-sourced, multi-timed and multi-level data regarding 294 employees, working under 80 supervisors, from multiple organisations operating in Pakistan. The authors analysed these data using multi-level structural equation modelling via Mplus. Findings The results show that employee MD significantly mediates the direct relationship between POP and EKHC. The mediation effect is further positively moderated by SKHE, which amplifies the mediation effect. Originality/value To the best of the authors' knowledge, this is the first empirical study that examines both EKHC and SKHE together in a single research model and provides a thorough understanding of why, how and when POP leads to EKHC.