Cities are not homogeneous territories: some neighborhoods concentrate wealth while others face difficulties such as unemployment, poverty, exclusion or crime. These fractures are a consequence of urban segregation, i.e. socioeconomic inequalities spatial pattern. To that matter, this thesis addresses three objectives: (i) the characterization and explanation of segregated urban structures appearance, (ii) the link between segregation and labor market, and eventually (iii) the link between segregation and education. According to Urban Economics, the urban structure influences individual’s employment status through the distance to jobs. This hypothesis is tested via an empirical study on the Marseille urban area. The link between segregation...