Latest Working Papers

Origins and Consequences of Spatial Inequality

Roessler, Philip, Yannick I. Pengl, Kyle Titlow, Robert Marty and Nicolas van de Walle. 2020. “The Cash Crop Revolution, Colonialism, and Spatial Inequality in Africa.” Under review.

Pengl, Yannick I., Philip Roessler, and Valeria Rueda. 2019. “The Political Economy of Ethnicity in Africa: A Research Design.” Under review.

Pengl, Yannick I., and Philip Roessler. 2019. “Cash Crops and Political Power.”

Pengl, Yannick I., and Roessler, Philip. 2019. “The Dual Legacy of Colonial Cash Crop Production: State Capacity, Resource Dependence, and the Risk of Conflict.”

Mobile Technology, Digital Inequality and Development

Roessler, Philip, Peter P. Carroll, Flora Myamba, Cornel Jahari, Blandina Kilama, and Daniel Nielson. 2020. “An Experimental Analysis of Mobile Phone Ownership on Poverty Reduction. Under review.

The Mobile Phone Revolution and Digital Inequality: Scope, Determinants and Consequences.” Report for Pathways for Prosperity: Commission on Technology and Inclusive Development. 2018.

Roessler, Philip, Flora Myamba, Peter Carroll, and Daniel Nielson. 2018. “Mobile Phone Ownership and Civic Engagement: Evidence from a Field Experiment in Tanzania.” College of William and Mary.

Roessler, Philip, Flora Myamba, Peter Carroll, and Daniel Nielson. 2016. “From Mobile Phone Ownership to the Uptake and Usage of Digital Financial Services: Experimental Evidence from Tanzania.” College of William and Mary.

Roessler, Philip, Flora Myamba, and Daniel Nielson. 2015. “Mobile Phone Ownership as a Catalyst for Development: Findings from a Pilot Study in Tanzania.” Center for African Development at W&M, Working Paper No. 1, August 2015.


Roessler, Philip, and David Ohls. “Self-Enforcing Powersharing in Weak States.” (with David Ohls), International Organization, Vol. 72, No. 2 (Spring 2018): 423-454.

Mach, Katharine J., Caroline M. Kraan, W. Neil Adger, Halvard Buhaug, Marshall Burke, James D. Fearon, Christopher B. Field, Cullen S. Hendrix, Jean-Francois Maystadt, John O’Loughlin, Philip Roessler, Jürgen Scheffran, Kenneth A. Schultz, and Nina von Uexkull, “Climate as a risk factor for armed conflict.”

Roessler, Philip, and Layla Abi-Falah. 2017. “Blurry Lines: The African Union’s Imbalanced Regime of Constitutionalism and Its Consequences.” College of William and Mary.

China and the African State

Blair, Rob, Robert Marty, and Philip Roessler. 2019. “Foreign Aid and Soft Power: Great Power Competition in Africa in the Early 21st Century.” AidData Working Paper #86. Williamsburg, VA: AidData at William & Mary.

Blair, Rob, and Philip Roessler. 2016. “China and the African State: Evidence from Surveys, Survey Experiments and Behavioral Games in Liberia,” USAID, Research and Innovation Grants Working Papers Series, November 1, 2016.

Micro-Comparative Evidence on the Consequences of State Partition 

Beber, Bernd, Philip Roessler, and Alexandra Scacco. 2016. “Coping with Partition: Wealth, Security and Migration in Post-Separation Sudan.” New York University.

Beber, Bernd, Philip Roessler, and Alexandra Scacco. 2016. “Partition, Migration and Ethnic Identities: Evidence from a Panel Survey in Sudan.” New York University.



Roessler, Philip. Ethnic Politics and State Power in Africa: The Logic of the Coup-Civil War Trap (Cambridge University Press, 2016).

Book Overview

Roessler, Philip, and Harry Verhoeven. Why Comrades Go To War: Liberation Politics and the Outbreak of Africa’s Deadliest Conflict (Hurst Publishers/Oxford University Press, 2016).

Peer-Reviewed Articles

Beber, Bernd, Philip Roessler, and Alexandra Scacco. 2014. “Intergroup Violence and Political Attitudes: Evidence from a Dividing Sudan.” The Journal of Politics 76 (03): 649-65.

“Intergroup Violence and Political Attitudes” Replication Data and Files

Roessler, Philip. 2011. “The Enemy Within: Personal Rule, Coups, and Civil War in Africa.” World Politics 63 (2): 300-46.

“The Enemy Within” Online Appendix

“The Enemy Within” Replication Data

Ethnicity of Coup Conspirators Coding Material

Howard, Marc Morjé , and Philip G. Roessler. 2006. “Liberalizing Electoral Outcomes in Competitive Authoritarian Regimes.” American Journal of Political Science 50 (2): 365-81.

“Liberalizing Electoral Outcomes in Competitive Authoritarian Regimes” Replication Data.

Roessler, Philip G. 2005. “Donor-Induced Democratization and the Privatization of State Violence in Kenya and Rwanda.” Comparative Politics 37 (2): 207-27.

Other Publications


Roessler, Philip. How the African Union Got It Wrong on ZimbabweAl Jazeera. Op-ed. December 5, 2017.

Roessler, Philip, and Harry Verhoeven. “Did Congo’s Crisis Just Get A lot Worse,” The Monkey Cage blog, Washington Post online, February 3, 2017.

Blair, Robert, and Philip Roessler. 2014. “Chinese Development Finance and the African State: A Capacity-Legitimacy Trade-Off?” First Tranche blog,, June 19, 2014.

Roessler, Philip. 2013. “Why South Sudan Has Exploded in Violence.” The Monkey Cage blog, Washington Post online. December 24, 2013.

Roessler, Philip. 2013. “Civil War.” In Routledge Handbook of African Politics, ed. N. Cheeseman, D. Anderson and A. Scheibler. New York, NY: Routledge.

Roessler, Philip G., and Marc Morjé Howard. 2009. “Post-Cold War Political Regimes: When Do Elections Matter?” In Democratization by Elections: A New Mode of Transition, ed. S. I. Lindberg. Baltimore: Johns Hopkins University Press.