Jean-Charles Simon est économiste et entrepreneur. Il a été chef économiste et directeur des affaires publiques et de la communication de Scor de 2010 à 2013. Auparavant, il a été successivement trader de produits dérivés, directeur des études du RPR et, pendant 10 ans, dirigeant d'organisations patronales, notamment comme directeur de l'Afep et directeur général délégué du Medef.
Il a lancé en 2013 le site d'information FactaMedia.com, consacré au fact-checking, à la visualisation de données et à l'information factuelle.
Il tient un blog : simonjeancharles.com et est présent sur Twitter : @smnjc
Jean Garrigues est historien, spécialiste d'histoire politique.
Il est professeur d'histoire contemporaine à l' Université d'Orléans et à Sciences Po Paris.
Il est membre du jury du prix de thèse de l'Assemblée Nationale, du prix du Livre d'histoire du Sénat et du prix Jean Zay, du conseil scientifique des Rendez-Vous de l'Histoire et du Comité d'histoire de la Ville de Paris, ainsi que du conseil d'administration de la Société d'histoire de 1848.
Ses recherches portent sur la vie politique en France du milieu du XIXe siècle à nos jours, les relations entre pouvoir économique et pouvoir politique, les centres, les libéraux, la vie parlementaire, les contre-pouvoirs et les groupes de pression.
Il est l'auteur de plusieurs ouvrages comme Histoire du Parlement de 1789 à nos jours (Armand Colin, 2007), La France de la Ve République 1958-2008 (Armand Colin, 2008) et Les hommes providentiels : histoire d’une fascination française (Seuil, 2012). Son dernier livre, Le monde selon Clemenceau est paru en 2014 aux éditions Tallandier.
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© REUTERS/Toby Melville