Why are Women More Effective at Fostering Public Goods Provision When They Work in Women’s Groups? (co-authored with Macartan Humphreys).  In Gender and Development, eds. Siwan Anderson, Lori Beaman and Jean-Philippe Platteau, UNU-WIDER, 2017.

State Fragility, Governance Indicators, and the Risk of Civil Conflict. In Claudia Sepulveda, Ann Harrison, and Justin Yifu Lin, eds., Development Challenges in a Postcrisis World. Annual World Bank Conference on Economic Development, 2011. Washington, DC: The World Bank, 2013. Also published as “Fragilite des Etats, indicateurs de gouvernance et risque de guerre civile,” Revue d’economie du developpment 4 (Decembre 2011), 153-186.

Governance and Civil War Onset. Prepared for the World Bank’s 2011 World Development Report on “Conflict, Security, and Development.”

Evaluating Community-Driven Reconstruction: Lessons from post-conflict Liberia. Development Outreach 11, 2 (October 2009), 50-52.

Integrating Quantitative and Qualitative Methods. (Co-authored with David D. Laitin.) In Janet M. Box-Steffensmeier, Henry E. Brady and David Collier, eds., Oxford Handbook of Political Methodology (Oxford: Oxford University Press, 2008). Reprinted in Robert E. Goodin, ed., Oxford Handbook of Political Science (Oxford: Oxford University Press, 2009).

Economic Development, Insurgency, and Civil War. In Elhanan Helpman, ed., Institutions and Economic Performance (Cambridge, MA: Harvard University Press, 2008).

International Institutions and Collective Authorization of the Use of Force. In Alan Alexandroff, ed., Can the World Be Governed? Possibilities for Effective Multilateralism (Waterloo, Ontario: Wilfred Laurier University Press, 2008).

The Rise of Emergency Relief Aid. In Michael Barnett and Thomas G. Weiss, eds., Humanitarianism in Question: Politics, Power, Ethics (Ithaca, NY: Cornell University Press, 2008).

Reforming International Institutions to Promote International Peace and Security. In Peace and Security, Expert Paper Series #5 (Secretariat of the International Task Force on Global Public Goods, 2006).

Ethnic Mobilization and Ethnic Violence. In Barry R. Weingast and Donald Wittman, eds., Oxford Handbook of Political Economy (Oxford: Oxford University Press, 2006).

Rationalism and Constructivism in International Relations Theory (co-authored with Alex Wendt). In Walter Carlsnaes, Thomas Risse, and Beth Simmons, eds., Handbook of International Relations Theory. London: Sage Publications, 2002.

Electoral Accountability and the Control of Politicians: Selecting Good Types versus Sanctioning Poor Performance. In Bernard Manin, Adam Przeworski, and Susan Stokes, eds., Democracy, Accountability, and Representation. Cambridge: Cambridge University Press, 1999.

Domestic Politics, Foreign Policy, and Theories of International Relations. Annual Review of Political Science, vol. 1. Palo Alto, CA: Annual Reviews, 1998.

Commitment Problems and the Spread of Ethnic Conflict. In David Lake and Donald Rothchild, eds., The International Spread of Ethnic Conflict: Fear, Diffusion, and Escalation. Princeton: Princeton University Press, 1998.

Deliberation as Discussion. In Jon Elster, ed., Deliberative Democracy.  Cambridge: Cambridge University Press, 1998.  Reprinted in Jostein Gripsrud, Hallvard Moe, Anders Molander and Graham Murdock, The Public Sphere} (Sage Publications, 2010).

Counterfactuals and Causation in Social Science: Exploring an Analogy between Cellular Automata and Historical Processes. In Philip Tetlock and Aaron Belkin, eds., Counterfactual Thought Experiments in World Politics. Princeton: Princeton University Press, 1996.