Article dans une revue: Studying a sample of recently published papers in the main Economics journals, I find that these American journals mostly publish work on American data, written by members of American universities. I argue that this state of affairs is not essentially because of a language problem, but is explained by the domination of US universities on the international academic market in Economics. This domination has thus direct consequences for the topics of research, and thus for the accumulation of knowledge, in Economics.