Moral exclusion in hospitality: testing a moderated mediation model of the relationship between perceived overqualification and knowledge-hiding behavior

Purpose Drawing from moral exclusion theory, this study aims to examine a moderated mediation model for the relationship between perceived overqualification (POQ) and knowledge-hiding behavior directly and via perceived dissimilarity. Design/methodology/approach Using the convenience-sampling technique, time-lagged (three waves) data were gathered from 595 employees working in different hotels and event management firms. Hayes' PROCESS macro was used to test the moderated mediation model. Findings Results showed that perceived dissimilarity among coworkers mediated the result of POQ on knowledge-hiding behavior. In addition, interpersonal disliking moderated the indirect effect in a way that this effect was strong when interpersonal liking was low. Practical implications Findings suggest that organizations should make the overqualified realize that they can also learn from their coworkers whom they perceive as less qualified. In this, the feelings of dissimilarity and disliking can be minimized that in turn may decrease the intention to hide knowledge. Originality/value The present study offers a new perspective for identifying the nexus between POQ and knowledge-hiding behavior by drawing upon moral exclusion theory and examining the mediating role of perceived deep-level dissimilarity.