I study transnational political violence, international security and climate politics with a focus on Latin America and the Global South. My most recent projects integrate historical archival work with experimental methods in political psychology and formal theory to shed new light onto how domestic political competition and international hierarchies interact in shaping outcomes. I am full professor at the School of International Relations at FGV in Brazil. I earned my doctorate in International Relations from Oxford University in 2007 and in 2022-2023 I am visiting fellow at the Princeton Institute for International and Regional Studies.