Susanne Braun is Professor in Leadership and Associate Dean (Postgraduate Research Students) at Durham University Business School, Durham University, United Kingdom.

Tiffany Keller Hansbrough is Associate Professor of Leadership and Organizational Behavior and Co-Director of the Bass Center for Leadership Studies, School of Management, Binghamton University, United States.

Gregory A. Ruark is Program Manager for Social Sciences at the Army Research Office, DEVCOM ARL, United States.

Robert G. Lord is Professor (Emeritus) in Leadership at Durham University Business School, Durham University, United Kingdom. He was a Distinguished Professor of Psychology at the University of Akron, United States, for 38 years.

Rosalie J. Hall is Professor (Emeritus) of Management at Durham University Business School, Durham University, United Kingdom.

Olga Epitropaki is Professor in Management, Deputy Executive Dean (Research), at Durham University Business School, Durham University, United Kingdom.