E. Rappard, William Keywords: League of Nations | Nationalism | Economy | Mots clefs: Société des Nations | Nationalisme | Economie politique | ABSTRACT After an introductory presentation of the conflict between nationalism and internationalism since the end of the First World War, William Rappard devotes the first chapter to the presentation of economic nationalism, and next devotes the second chapter to the League of Nations. The author later shows the conflict existing between nationalism and economic internationali…