About the Author

Peter T. Coleman

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Dr. Peter T. Coleman is Professor of Psychology and Education at Columbia University where he holds a joint-appointment at Teachers College and The Earth Institute. Dr. Coleman directs the Morton Deutsch International Center for Cooperation and Conflict Resolution (MD-ICCCR) and the Institute for Psychological Science and Practice (IPSP) at Teachers College, and is Executive Director of the Advanced Consortium on Cooperation, Conflict, and Complexity (AC4) at The Earth Institute.

Dr. Coleman’s current research focuses on conflict intelligence and systemic wisdom as meta-competencies for navigating conflict constructively across all levels, and includes projects on adaptive negotiation and mediation dynamics, cross-cultural adaptivity, optimality of motivational dynamics in conflict, justice and polarization, multicultural conflict, intractable conflict, and sustainable peace.

In 2003, he became the first recipient of the Early Career Award from the American Psychological Association (APA), Division 48: Society for the Study of Peace, Conflict, and Violence, and in 2015 was awarded the Morton Deutsch Conflict Resolution Award by the APA and a Marie Curie Fellowship from The EU. Dr. Coleman edits the award-winning Handbook of Conflict Resolution: Theory and Practice (2000, 2006, 2014) and his other books include The Five Percent: Finding Solutions to Seemingly Impossible Conflicts (2011) and Making Conflict Work: Navigating Disagreement Up and Down Your Organization (2014). He is also a member of the United Nation Mediation Support Unit’s Academic Advisory Council, is a founding board member of the Gbowee Peace Foundation USA, and is a New York State certified mediator and experienced consultant.


Members of the International Project on Conflict and Complexity at the 2014 Dynamical Systems Theory Innovation Lab in Hawaii.

Members of the International Project on Conflict and Complexity at the 2014 Dynamical Systems Theory Innovation Lab in Hawaii.

THE FIVE PERCENT was written with major contributions from the faculty of the International Project on Conflict and Complexity, including:  Robin Vallacher PhD, Andrzej Nowak PhD, LanBui-Wrzosinska PhD, Andrea Bartoli PhD, Larry Liebovitch PhD, Naira Musallam PhD, and Katharina Kugler, PhD