Abstract: This study focuses on the impact of discrimination and acceptance on psychological functioning of 974 immigrants and refugees living in the Netherlands (i.c. Moroccan, Turkish, Antillian and Surinamese immigrants and Iranian refugees). These immigrants live in peaceful coexistence in the Netherlands, nevertheless, they perceive discrimination (e.g. job and general) and lack of acceptance from Dutch mainstreamers. Comparing these immigrant groups is especially interesting because the psychological part of the acculturation process, such as the consequences of discrimination, non-acceptance by Dutch mainstreamers, loneliness, and homesickness, is expected to be different these immigrant groups. Whereas political refugees are forced from their home countries and “pushed” into a new environment, immigrants are generally “pulled” toward their new country. This study aims at getting more insight in the antecedents and moderators/mediators of the psychological part of the acculturation process. Especially, the study looks at the effects of push and pull mechanisms, gender, education and labor market achievement, perceived discrimination, acculturation orientations and psychological and sociocultural outcomes of immigrants and refugees in the Netherlands. Results and implications will be discussed.