Résumé : This volume focuses on the issue of decentering comparative analysis. This chapter chooses to use the method of local intra-national comparative case
studies to achieve this goal. The comparative analysis of local case studies is a classical methodological way to tackle the comparative challenge of multisclarity. At the local level, it is possible to observe a great range of actors, institutions, ideas, techniques, or social forms that are present for either historical or institutional reasons, or because they have circulated throughout social spaces. [premières lignes]