Partie III, chapitre 12There have been some important developments in the analysis of proximity relations since its origin. First introduced by a group of French economists (Kirat and Lung 1997; Torre and Gilly 1999), during the 1990s this approach was primarily confined to the analysis of industrial production relations and was specifically developed in the context of the study of innovation processes. Industrial relations, innovation, firm mobility, new technology, territorial resources, local productive systems… all have been studied, endlessly explored and brought back under the spotlight again by the confrontation between theoretical analysis and empirical research (Boschma 2005; Carrincazeaux et al. 2008; Rychen and Zimmermann 2008)