Aftalion, Albert Keywords: Economic crisis | Finances | Mots clefs: Crise économique | Finances | ABSTRACT Albert Aftalion dedicates his course to the great modern crises, periodic and general crises that have followed one another for just under one hundred and fifty years (in 1931), as well as their economic and financial repercussions. He starts his course by presenting the fundamental characteristics of the great modern crises (the crisis is general, global). He then describes the main manifestations of econ…