핵심자기평가가 리더-구성원 교환관계를 매개로 조직시민행동에 미치는 영향: 이미지 향상동기의 조절 역할을 중심으로

Drawing on conservation of resources theory(COR) and the approach–avoidance framework, this study examines the effect of core self-evaluation(CSE) on organizational citizenship behavior(OCB) by investigating the mediating role of leader–member exchange(LMX) and the moderating role of employees’ self-enhancement motive. Data were collected from supervisor–subordinate dyads across various industries in South Korea and the results are as follows. First, employees’ CSE showed significant positive effects on both LMX and OCB. According to COR theory and the approach–avoidance framework, individuals with high CSE tend to possess a high level of personal resources and exhibit high approach motivation. Thus, they are more likely to perceive their work environment positively and engage in constructive behaviors, which in turn enhance both LMX and OCB. Second, this study found that LMX mediates the positive relationship between CSE and OCB. Third, the moderating and moderated mediation effects of employees’ self-enhancement motive were verified. Specifically, our finding demonstrated that the positive effect of LMX on OCB is amplified when employees exhibited low self-enhancement motive. The moderated mediation analyses revealed that the indirect effect of CSE on OCB via LMX was amplified when employees had low self-enhancement motive. Based on the results of this study, we confirmed the positive effect of CSE on OCB via LMX and further revealed that employees’ self-enhancement motive serves as an important individual-level driver in this process. Theoretical contributions and practical implications are discussed.