Analyzing and Mapping the Leadership Literature and Its Organizational Implications: An Integrative Analysis

With an emphasis on organizational outcomes and emerging leadership approaches, this review assessed the major contributions of leadership research over the past two decades and explored the evolution of theoretical developments in the field. Following more than twenty years of scholarly attention to leadership models and typologies, the aim of this study is to provide a comprehensive analysis of the literature on leadership theories and their associated organizational variables. An exploratory and complementary research design was adopted to address the gaps left by previous systematic literature reviews. The findings indicate that, when organizational-level constructs are examined in relation to widely studied leadership theories, several dominant frameworks emerge, including transformational, transactional, laissez-faire, ethical, authentic, ambidextrous, and self-leadership. The results suggest that nearly all major organizational constructs have been investigated in connection with leadership development. Variables such as performance, job satisfaction, and personality appear most frequently, whereas terms such as life satisfaction, performance appraisal, and workplace bullying appear less often. Notably, a key finding of this review is the identification of several leadership theories present in the broader literature but absent from the ranking or co-occurrence analysis. These overlooked theories include instrumental leadership, dark leadership, hybrid, digital or e-leadership, and participative leadership.