Universiteit Leiden

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Juan Masullo Jimenez

Assistant Professor

Dr. J. Masullo Jimenez
+31 70 800 3879

Juan Masullo is an Assistant Professor at the Institute of Political Science at Leiden University.

More information about Juan Masullo Jimenez

Juan Masullo (Ph.D., European University Institute) is Assistant Professor in the Institute of Political Science at Leiden University. He is also Research Associate at the Changing Character of War Centre at the University of Oxford.

His research sits on the intersection of comparative politics and international relations and explores complex social dynamics in settings of political and criminal violence. In particular, he is interested in civilian agency and collective action in the face of violence (from the establishment of peace communities to the formation of vigilante groups); and in peoples’ attitudes and preferences towards different policy approaches to deal with crime and violence (from peace negotiations to militarized crackdowns). He is also interested in field research methods and research design for qualitative and mixed-methods research.

His research combines multiple types of evidence and research methods and relies extensively on immersive fieldwork in violence-affected areas. His current book project explores the processes leading peasant communities living in warzones to organize nonviolent collective action to refuse to cooperate with armed groups in the Colombian civil war. In addition to his work in Colombia, his current research projects focus on Mexico and Brazil.

His work has been published in Comparative Political Studies, International Studies Review, Terrorism and Political Violence, Journal of Peacebuilding & Development, Mobilization and Global Policy Journal, and in several edited volumes.

Before joining Leiden University, he was Lecturer at the University of Oxford; Postdoctoral Fellow at the Bremen International Graduate School of Social Science (BIGSSS); and Research Fellow at the Program on Order, Conflict and Violence (OCV), Yale University.

For an updated CV and more information, please visit Juan’s personal website.

PhD supervision

Juan Masullo is available to supervise PhD students and invites PhD candidates to send research proposals in the areas of:

  • Political violence (in particular, civil war); criminal violence
  • Contentious politics and social movements
  • Latin American politics

See more information on PhD positions:

Institute of Political Science: PhD

Assistant Professor

  • Faculteit der Sociale Wetenschappen
  • Instituut Politieke Wetenschap

Work address

Turfmarkt 99
2511 DP The Hague
Room number 6.06



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