Abstract
A sense of belonging is a crucial factor determining the identification of the firms in industrial districts. From the social capital perspective, this paper analyses how the structural and relational dimensions of social capital determine a firm's sense of belonging to the industrial district. The study analyses a sample of 213 companies belonging to two Spanish industrial districts. Results of the survey offer an important contribution to the specific literature by finding the explanatory factors with which to distinguish between groups according to their level of embeddedness in the district.