Partner choice is one of the key elements that induce cultural and structural changes in a society; for this reason, it is an established field of research concerning immigrants' integration into destination countries, generally with a focus on intermarriage. This thesis attempts to fill the gap in the literature in terms of exploring partner choice of children of immigrants, focusing on the behaviour of Turkish origin youth in Switzerland. This thesis goes beyond the usual polarization of between exogamy and endogamy and distinguishes between local and transnational endogamy. The main purpose of this thesis is to describe and model the partner choices of second generation men and women of Turkish origin in Switzerland, to present comparative analyses at diachronic and synchronic levels, and to understand and give a subjective meaning to the partner choice mechanisms. For these purposes, this thesis combines quantitative and qualitative approaches.