Two of a kind? Leader-member exchange and organizational citizenship behaviors: The moderating role of leader-member similarity

This study investigates the role of similarity in ethnic origin between supervisor and employee as a potential moderator between subordinates' leader-member exchange (LMX) and organizational citizenship behavior (OCB). The results support the interaction effect of supervisor-subordinate ethnic differences with LMX and OCB. As hypothesized, OCB was positively related to LMX for both ethnically similar and dissimilar dyads, but the relationship was strongest for similar dyads.