In the last two decades, the quest for a widely accepted definition of social enterprise has been a central issue in a great number of publications. The main objective of the ICSEM Project on which this book is based was to show that the social enterprise field would benefit much more from linking conceptualisation efforts to the huge diversity of social enterprises than from an additional and ambitious attempt at providing an encompassing definition. Starting from a hypothesis that could be termed "the impossibility of a unified definition", the ICSEM research strategy relied on bottom-up approaches to capture the social enterprise phenomenon in its local and national contexts. This strategy made it possible to take into account and give l...