The paper proposes the reflection on the academic prodution about exclusion, verifying its enunciations and uses, during the last thirty years. It resumes the arguments about the marginality, which was typical of the seventies. The following decade is presented through authors and discussions that aim to analyse the territory and the space as the citizen's right. Finally, it focuses on some problems related to the generalized use of the concept of social exclusion, as well as its eventual adhesion to the global world.
Inequality; Marginality; Exclusion; Dual Cities