Today, the importance of leadership is growing day by day. As time changes, various types of leadership emerge. Changes in the industrial society and the business environment requires new leadership. And failed leaderships are disappearing. As the 20th century began, the global business environment is changing rapidly. Globaly, leaders across political, economic, cultural and social spheres have committed greed and corruption. A representative example is Enron''s accounting fraud case. The Enron case revealed immoral leadership of CEO. By the effect of Enron case, global business fell into turmoil. Therefore people demanded new leadership of social leaders. At this time, the Authentic leadership emerged. Authentic leadership is leadership that demonstrates authentic self-action based on existing leadership.

This study investigated the effect of Authentic leadership on organization effectiveness. Organizational effectiveness was measured by organizational commitment, Job Engagement, and turnover intentions. This study verified the mediator effect of positive psychological capital between Authentic leadership and organizational effectiveness. Also, this study verified the moderating effect of LMX on organizational effectiveness.
The subjects of the study were the members of KEPCO, a public company. 427 valid answers were analyzed among the 500 distributed questionnaires. Statistical analysis was performed by structural equation model and hierarchical analysis.

As a result of empirical study, The mediator variables of Positive psychological capital showed significant mediating effects on Organizational Commitment, Job Engagement, and Turnover Intention. Therefore, the psychological behavior of Positive psychological capital is a factor to strengthen positive action on Authentic leadership and Organizational Effectiveness. Therefore, companies need to introduce leadership which induces Positive psychological capital to their members. So, I would like to suggest that Authentic leadership is important leadership in corporate organization.
LMX showed significant moderating effects on affective commitment and Job Engagement. On the other hand, there was no moderating effects on continuous commitment, normative commitment, and turnover intention. It can be explained that its implication is dependent on the organizational environment of corporation. Because, the Organizational Effectiveness attributes have differentiated effects on public corporations. Therefore, the Moderate variables of LMX are influenced by corporate structure and corporate culture.
Based on the results of this study, I would like to suggest study scheme of future studies. In future studies, it is necessary to carefully select the sample that meets the purpose of the study. This is because research results vary depending on the organization size and corporate culture.
And I would like to try a combination study of the effect factors of Authentic leadership. Also, I hope the effects of Authentic leadership would be verified by divided into individual and organizational performance factors.
This continuous accumulation of Authentic leadership empirical research will strengthen the logical basis of behavioral theory and suggest the development direction of Authentic leadership.