James K. Sebenius is an American economist, currently the Gordon Donaldson Professor of Business Administration at Harvard Business School as well as co-founder and partner of Lax Sebenius LLC, specializes in analyzing and advising corporations and governments worldwide on their most complex and challenging negotiations.

[2] At PON, he chairs the University's annual Great Negotiator Award program, which has recognized negotiators such as Richard Holbrooke, Lakdhar Brahimi, George Mitchell, and Bruce Wasserstein.

Secretaries of State— including James Baker, George Shultz, Henry Kissinger, Madeleine Albright, Colin Powell, Condoleezza Rice, and John Kerry—about their most challenging negotiations.

[4] Most recently, his academic work has centered on the role of social media in shaping the theory and practice of negotiation.

"[6] In 2021, Sebenius published an article in the Negotiation Journal on "Dealmaking Disrupted: The Unexplored Power of Social Media in Negotiation",[7] and along with co-authors Ben Cook, David Lax and Paul Levy he published a Harvard Business Review article outlining a "Playbook for Negotiators in the Social Media Era.