Statebuilding: Consolidating Peace after Civil War, (Cambridge: Polity Press, 2013).
The Routledge Handbook of International Statebuilding, co-edited with David Chandler (Oxford: Routledge, 2013).
Between Terror and Tolerance: Religious Leaders and Conflict Management, editor (Washington DC: Georgetown University Press, 2011).
International Mediation in Civil War: Bargaining with Bullets (London: Routledge, 2009).
The Dilemmas of Statebuilding: Confronting the Contradictions of Postwar Peace Operations, co-edited with Roland Paris (London: Routledge, 2009).
From War to Democracy: Dilemmas of Peacebuilding, co-edited with Anna Jarstad (Cambridge: Cambridge University Press, 2008).
Democracy, Conflict, and Human Security: Pursuing Peace in the 21st Century, co-edited with Judith Large (Stockholm: International IDEA, 2006).
Democracy at the Local Level: The International IDEA Handbook on Representation, Participation, Conflict Management and Governance. (Stockholm: International IDEA, 2001).
"Power-Sharing in Civil War: Puzzles of Peacemaking and Peacebuilding," Civil Wars, Vol. 15, Iss. sup1, (2013).
"Presidentialism, Ethnic Violence, and the Risk of Overgeneralization," Ethnopolitics 12, no. 1 (2013).
"The SRSGs and the Management of Civil Wars," Global Governance 16, no. 2 (2010).
"Enhancing International Cooperation: Between History and Necessity." with Tom Farer, Global Governance 16, no. 1 (2010).
"Electoral System Choice in South Africa: Implications for Intergroup Moderation." Nationalism and Ethnic Politics 1, no. 2 (1995).
Selected Book Chapters
"Enabling Liberation: International Influences on Democratic Transition in South Africa," in Desha Girod, Larry Diamond, and Kathryn Stoner-Weiss, eds., International Influences on Democratic Transitions, (Baltimore: Johns Hopkins University Press, forthcoming 2013).
"Evaluating Election-Related Violence in Africa: Nigeria and Sudan in Comparative Perspective," in Dorina Bekoe, ed., Voting in Fear: Electoral Violence in Sub-Saharan Africa. (Washington, DC: United States Institute of Peace, 2012).
"Sustaining Peace after Waging War: Overcoming the Pathologies of the War-Ending Pact," in Caroline Hartzell and Matthew Hodie, eds., Strengthening Peace in Post Civil-War States, (Chicago: University of Chicago Press, 2010).
Bringing Back Transitology: Democratisation in the 21st Century, with Dr Mohammad-Mahmoud Ould Mohamedou, GCSP Geneva Paper – Research Series n°13, November 2013.
Prospects for Africa's 26 fragile countries, with Jakkie Cilliers, African Futures Paper No. 8, October 2013.
Governance for Peace: Securing the Social Contract, with Rob Muggah. New York: United Nations Development Program, Bureau for Crisis Prevention and Recovery, 2012.
Vulnerability to Intrastate Conflict: Evaluating Quantitative Measures, with Barry Hughes and Jonathan Moyer, Peaceworks, (Washington, DC: United States Institute of Peace, 2011).
Cooperating for Peace: The Challenges and Promises of Partnerships in Peace Operations, Geneva Center for Security Policy, Geneva Papers, July 2010.
Elections and Conflict Prevention: A Programming Guide, United Nations Development Programme, Bureau for Development Policy, Oslo Governance Center, 2009.
Managing Contradictions: The Inherent Dilemmas of Postwar Statebuilding, International Peace Academy Policy Report, November 2007.
Democracy in Situations of Deep-Rooted Conflict, pgs. 127-142 in International IDEA, Ten Years of Supporting Democracy Worldwide (Stockholm: International IDEA, 2005).
Democracy and Peacebuilding at the Local Level: Lessons Learned, with Paul Risley, Occasional Paper (Stockholm: International IDEA, Fall 2005).
Democracy at the Local Level in East and Southern Africa: Profiles in Governance, Stockholm, International IDEA, 2004.
Competing Claims: Self Determination and Security in the United Nations, with Simon Chesterman and Tom Farer, International Peace Academy Policy Brief, April 2001.
New Approaches to International Negotiation and Mediation: Findings from USIP-Sponsored Research, Peaceworks, U.S. Institute of Peace occasional paper series, 2000.