In this comparative research project we aim to study the dynamics and effects of ethnic residential  segregation in four Nordic countries.in four Nordic countries. The overall research questionis two-fold: How are the Nordic welfare states shaping the conditions for ethnic residential segregation and de-segregation, and how are the patterns and processes of segregation affecting the wider social and spatial developments in the different host societies? These questions will be approached in five sub-projects, each of which willThese questions will be approached in five sub-projects, each of which will delve deeper into different aspects of the dynamics and effects of ethnic residential segregation.