This study began with the question of whether there is an indicator that can accurately measure the importance of the role of a leader in organizational life. Strictly speaking, the behavior of a leader is bound to have a positive or negative effect on his or her subordinates, that is, subordinates of the organization. It may be due to the influence of the power of the leader. Leadership research mostly studies the leadership effect in a positive aspect. It can be said that the term Leadership has a positive meaning. Although the concepts and definitions of leadership revealed through positive leadership behavior are different, many studies have suggested that they have a positive effect on a number of variables such as job attitude, job performance, and organizational performance of members. However, research on the negative effects of leaders' actions, that is, negative leadership, is increasing recently. It was revealed that the negative leadership type, named Destructive Leadership, negatively affects the job satisfaction of subordinates. Einarsen et al. (2007) defined leaders' destructive behavior as behavior that negatively affects not only members but also organizations, negatively affecting organizational goals, tasks, resources, effectiveness, motivation, and well-being or job satisfaction of subordinates. Several types of negative leadership behavior have been suggested, but this study intensively studied autocratic leadership. A number of previous studies have shown that autocratic leadership induces negative feelings for leaders' behaviors by ignoring subordinates' opinions or excluding them from the decision-making process, ultimately adversely affecting job attitudes and commitment for achieving organizational goals. This study is an empirical study conducted to clarify the mediating effect of the leader-member exchange(LMX) in the relationship between autocratic leadership and subordinate proactive behavior. As a result of analyzing 272 ROK Air Force officers and NCOs, it was found that autocratic leadership had a negative (-) relationship that negatively affected the leader-member exchange, and that the leader-member exchange mediated the negative effect of autocratic leadership on proactive behavior. In addition, the effect of controlling the relationship between autocratic leadership and leader-member exchange was also confirmed by the strength of the subordinates' growth needs. The higher growth need strength, the stronger the negative effect of autocratic leadership on the leader-member exchange. Through this study, it was confirmed that autocratic leadership undermines the leader-member exchange, and through this, subordinates engage in less proactive and non-participating behaviors. Research revealing the negative effects of autocratic leadership is increasing abroad, but there are few cases of empirical research on domestic cases. The results of this study show that leader's negative behavior can negatively affect the proactive behavior of subordinates for the organization are examples of how important leaders' roles and behaviors can have, and provide implications in many aspects.
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