Core Faculty

Dr. Peter Coleman

Dr. Peter T. Coleman holds a Ph.D. in Social-Organizational Psychology from Columbia University. He is Professor of Psychology and Education at Columbia University where he holds a joint-appointment at Teachers College and The Earth Institute and teaches courses in Conflict Resolution, Social Psychology, and Social Science Research. Dr. Coleman is Director of the Morton Deutsch International Center for Cooperation and Conflict Resolution (MD-ICCCR) at Teachers College, Columbia University and Executive Director of Columbia University’s Advanced Consortium on Cooperation, Conflict, and Complexity (AC4). He currently conducts research on optimality of motivational dynamics in conflict, power asymmetries and conflict, intractable conflict, multicultural conflict, justice and conflict, environmental conflict, mediation dynamics, and sustainable peace.

Dr. Beth Fisher-Yoshida

Dr. Fisher-Yoshida is a faculty member and the academic director of the Negotiation and Conflict Resolution program at the School of Continuing Education, Columbia University. She is also a lecturer in the Social and Organizational Psychology Program at Teachers College, Columbia University. Dr. Fisher-Yoshida teaches classes in conflict resolution and related fields and conducts participatory action research. Dr. Fisher-Yoshida conducts research in the areas of conflict and conflict resolution with a focus on intercultural communication, transformative learning and Coordinated Management of Meaning (CMM). Dr. Fisher-Yoshida has more than 20 years of experience in working with people in organizations. Her areas of specialization include working with client organizations in supporting their change efforts through addressing: conflict resolution, diversity, communication, team building, performance management systems and leadership development.

Mr. Robert Ricigliano

Robert Ricigliano is an Adjunct Professor and Co-Director of the Master of Sustainable Peacebuilding degree program at the University of Wisconsin-Milwaukee (UWM), a non-resident Fellow at the Foreign Policy Institute of Johns Hopkins University, and does consulting work on peacebuilding in complex environments. He serves as Chair of the Board of Directors for the Alliance for Peacebuilding and leads the systems practice for Triad Consulting Group. Ricigliano focuses on systems thinking and complexity approaches to sustainable peacebuilding, as well as negotiation and conflict management.  He has worked with the US Agency for International Development, the Department of Defense, and the Department of State, as well as with NGOs, foundations, and officials, leaders of armed groups, and political parties in the US and in conflict zones around the world. He recently wrote the book, Making Peace Last: a systemic approach to sustainable peacebuilding (2012).

Dr. Andrea Bartoli

Dr. Bartoli is the Dean of the School of Diplomacy and International Relations at Seton Hall University.  He was formerly the Dean of the School for Conflict Analysis and Resolution at George Mason University. He works primarily on Peacemaking and Genocide Prevention. The Founding Director of Columbia University’s Center for International Conflict Resolution (CICR), a Senior Research Scholar at the School of International and Public Affairs (SIPA), a Teaching Fellow at Georgetown University, and at the University of Siena, and a Research Affiliate at Columbia University’s ICCCR and the Advanced Consortium on Cooperation, Conflict, and Complexity (AC4) Dr. Bartoli has taught in the US since 1994. He is a Board member of Search for Common Ground, has been involved in many conflict resolution activities as a member of the Community of Sant’Egidio (, and has published books and articles on violence, migrations and, conflict resolution. He latest book is ‘Negotiating Peace: The Role of NGO’s in Peace Processes’ (2013)

Dr. Danny Burns

Danny Burns is Team Leader of the Participation, Power and Social Change team at the Institute of Development Studies (IDS). His work focuses on participatory learning for social change with a strong emphasis on systems thinking and complexity.  Between 2002 and 2010 he was Professor of Social & Organisational Learning at the University of the West of England (UWE). At UWE, he co-directed the SOLAR action research centre. Prior to this he was a lecturer, then senior lecturer, at the School for Policy Studies, University of Bristol. There he was Programme Director of the M.Sc. in Management Development and Social Responsibility. Previously, Danny worked as the Director of the Tenant Participation Advisory Service for Scotland and prior to that as Director of the Decentralisation Research and Information Centre. Over the past eight years he has directed or co-directed more than fifteen action research projects.  Danny’s interests include participatory methods, systemic action research, community development and community action, the significance of complexity and systems thinking to development and systemic conflict transformation.  See more about Danny Burns and his work here.

Dr. Diana Chigas

Diana Chigas, J.D., M.A.L.D., is a Professor of the Practice of International Negotiation and Conflict Resolution at the Fletcher School, Tufts University and Director of the Reflecting on Peace Practice program at CDA Collaborative Learning Projects in Cambridge, MA, USA. At CDA she has worked with non-governmental and inter-governmental agencies to improve the impact of peace programming and development and humanitarian assistance on conflict. She has worked with OECD-DAC to develop an approach to guidance for evaluation of conflict prevention and peacebuilding and with the United Nations on issues of evaluation of peacebuilding and conflict prevention. She currently co-directing an action research effort on understanding cumulative impacts of peacebuilding efforts. Prior to joining CDA, Diana worked as a facilitator, trainer and consultant in negotiation, dialogue and conflict resolution, at Conflict Management Group, a non-governmental organization founded by Harvard Law School Professor Roger Fisher (and now part of Mercy Corps). Her work has included development of strategies, training and advice on preventive diplomacy in the OSCE, “track two” discussions in El Salvador, in South Africa, Ecuador and Peru and in the Georgia/South Ossetia peace process, and facilitation of inter-ethnic dialogue in Cyprus.

Dr. Larry Liebovitch

Dr. Liebovitch is Professor of Physics and Psychology and and previously the Dean of the Division of Mathematics and Natural Sciences at Queens College of the City University of New York. Dr. Liebovitch earned a bachelor’s degree in physics at City College of New York, and a doctorate in astronomy from Harvard. He was a Postdoctoral Fellow at Mt. Sinai School of Medicine in New York, and Assistant Professor at the College of Physicians and Surgeons of Columbia University. At Florida Atlantic University he served as the interim director of the Center for Complex Systems and Brain Sciences and as the Associate Dean for Graduate Programs and Studies in the Charles E. Schmidt College of Science. He has used nonlinear methods to analyze and understand molecular, cellular, psychological, and social systems. He is also a Research Affiliate at Columbia University’s ICCCR and the Advanced Consortium on Cooperation, Conflict, and Complexity (AC4).

Dr.  Timothy Ehlinger

EhingerDr. Ehlinger’s basic research examines the cause and effect relationships between human-induced stressors and the ecological integrity of lakes, streams and rivers.  His work incorporates landscape and watershed level processes, as well as detailed investigations of the habitat requirements, ecology and reproduction of fishes and aquatic invertebrates. These projects are often linked to the restoration or remediation of damaged ecosystems. He is also involved in cross-disciplinary collaborations for the design and implementation of sustainable development strategies. Since 2001, he has been working closely with collaborators in Romania and Costa Rica using watershed ecology as a foundation for planning sustainable development. A central aspect of the international work includes partnerships with Universities and Research Institutes in Constanta, Romania and in Thessaloniki, Greece.