Mediator and negotiation expert, The Heller School for Social Policy and Management; He is an Affiliated Faculty and Executive Committee Member of the Program on Negotiation (PON) at Harvard Law School. His PON research addresses responsible negotiation and leadership.

For 20 years, in over 50 countries, he has run research, executive education and consulting missions for international organizations (EBU, OECD, UNDP, UNEP, UNITAR, etc.), national governments, global consulting firms (The Boston Consulting Group, McKinsey, etc.) or corporations (Airbus, EDF, Faurecia, Sanofi-Pasteur, Vivendi, etc.). He belongs to the UN mediators' network.

He developed the Negotiators of the World programs, supporting post-conflict work through the Burundi Leadership Training Program (2003-2007) and the DR Congo Cohesive Leadership Initiative (2006-2011). He also facilitated stakeholders’ meetings for the International Dialogue on Peacebuilding and Statebuilding (2009-2011). Since 2012, he has contributed to the Karama Network in Jordan and Libya and to the Shades Negotiation program for Israelis and Palestinians. He launched two capacity-building organizations: CO-DEV (France) and CO-DEV, Inc. (USA).

In 1995, he established at Essec a European negotiation institute (Irene) that he ran until 2009. He created and consolidated the negotiation teaching at ENA French government school (1997-2010) and at the European Commission (2004-2010), both programs still running today. In 2009, he became the Essec Negotiation and Mediation Chair Professor, and in 2011, The Financial Times designated him "Professor of the Week" for his contribution to negotiation and mediation.

He was a visiting professor at Harvard Law School. He also taught at the Fletcher School of Law and Diplomacy (Tufts University), the Afghan Institute of Diplomacy, the Cameroon Institute of International Relations, the Cyprus International Institute for Management, the Lebanese University, the Universities of Brussels, Corsica, Mannheim, Mons and Paris II and V, and ENPC-ParisTech.

More than 20 Awards and Honors