Colloque du 14/09/2018 Introduction: Rachel Beatty RiedlPanel I. Radicalization: Conceptual Deconstruction, Examples, and ImplicationsChair: Sandrine Perrot, Sciences Po-CERIRoland Marchal, Sciences Po-CERI / CNRS : Rethinking radicalization: an African perspectivePaul Lubeck, Johns Hopkins School of Advanced International Studies: The Political Demography of Radicalism among Muslim Youth in the Northern States of Nigeria.Cécile Petitdemange, Université de Gènève-EHESS : Identifier et catégoriser : perspectives tchadiennes sur la radicalisation.Panel II. Governance, Elections and Political RecalibrationsChair: Richard Banegas, Sciences Po-CERIRachel Beatty Riedl, Northwestern University: Autocratization in the Sahel? Modes of Regime Transition in Comparative Perspective. Juliet Sorensen, Northwestern University (TBD)Joseph Brunet-Jailly, Sciences Po: Préparation, réalisation et suites de l'élection présidentielle du 29 juillet 2018.