The eighties and nineties have witnessed a renewed interest in the phenomenon of leadership. This special issue provides an overview of research on the concepts of transformational leadership, while focusing on conceptual, methodological and measurement problems. The effectiveness of various leadership styles is assessed, placing the concept against the background of changing organizations and changing environments.

The eighties and nineties have witnessed a renewed interest in the phenomenon of leadership. This special issue provides an overview of research on the concepts of transformational leadership, while focusing on conceptual, methodological and measurement problems. The effectiveness of various leadership styles is assessed, placing the concept against the background of changing organizations and changing environments.