Ariel Colonomos
Senior Research Fellow, CNRS
Phone: +33 (0) 1 58 71 70 22 - ariel.colonomos@sciencespo.fr

Holds degrees from the University of Paris Dauphine (business and administration), the University of Paris 10 Nanterre (philosophy) and a Ph.D. in political science from Sciences Po. Joined CERI in 1998. Co-ordinator (with Laetitia Bucaille) of the Monde (International Issues) book series at the Presses de Sciences Po; member of the editorial boards of International Political Sociology.

He teaches at Sciences Po both in the undergrad and the doctoral programs. He has also lectured at Columbia University and has been a regular visiting fellow at the Institute of War and Peace in the political science department.

He is the author of several books and articles focusing on the ethics of the international relations, including a recent study on the preventive use of force and its justification. He has also studied the role of predictive ideas in international relations. His new research program focuses on "valuing life"; he studies dilemmas of hostage taking negotiations and the uses of proportionality.

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Research interests

- Valuing lives
- The ethics of war
- Predictions in IR
- The epistemology of international relations

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Main Publications

- La Politique des oracles - Raconter le futur aujourd'hui, Paris, Albin Michel, 2014, transl. Selling the Future - The Perils of Predicting Global Politics, Hurst, 2015.

- "The Future of Jus ex Bello", Global Policy, 2015, forthcoming

-  "Self-blinded Oracles: DC's Marketplace for Security", European Review of International Studies, 2, 1, 2015, p.38-61

- “War in the Face of Doubt: Early Modern Classics and the Preventive Use of Force”,  in S. Recchia, J. Welsh (eds.), Just and Unjust Military Interventions European Thinkers from Vitoria to Mill, Cambridge, Cambridge University Press, 2013, pp. 48-69.

- Le Pari de la guerre : guerre préventive, guerre juste ?, Paris, Denoël, 2009, Trad. The Gamble of War: Is it Possible to Justify Preventive War?, New York, Palgrave, 2013.

- Moralizing International Relations. Called to Account, New York, Palgrave, 2008, Trad. De la morale dans les relations internationales. Rendre des comptes, Paris, Odile Jacob, 2005.

- « Prévention à l’américaine : the Fog of Norms », Anthony F. Lang, Amanda Russell Beattie (eds.), War, Torture and Terrorism: Rethinking the Rules of International Security, London, Routledge, 2008, pp. 85-102.

- « Ethical Reasoning and Justification in International relations », International Social Sciences Journal, Vol. 59, n° 191, 2008, pp. 115-127.

- « Precision in Uncertain Times : Targeting as a Mode of Justification of the Use of Force », in David Chandler, Volker Heins, (eds.), Rethinking Ethical Foreign Policy Pitfalls, Possibilities and Paradoxes, London, Routledge, 2007, pp. 206-233.

- Eglises en réseaux, Paris, Presses de Sciences Po, 2000.

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Online Publications (CERI website)