Marriage between immigrants and natives can be regarded as a measurement of
assimilation and integration. The present analysis of inter-marriage in Ge
rmany refers to the choice of partner. In contrast to other studies which a
re based on current occurence of binational partnerships, the effects of se
lection which stem from the different length of duration of partnerships in
dependence of the choice of partner can be avoided. Furthermore, the prese
nt analysis considers not only marital relationships but also the non-marit
al choice of partner. The analysis relies on official data as well as on su
rvey data. Summarizing the major results, German/foreign choice of partner
can according to the respective nationalities be subdivided into three type
s: (1) the neighbouring nationalities, (2) the large national groups in Ger
many (especially the nations of guest workers) and (3) the nationalities in
respect to which binational choice of partner cannot be explained by physi
cal closeness. Inter-marriage according to type 1 and 2 are characterized b
y parameters of social structure such as sex ration and the size of the for
eign population, whereas in the latter case individual aspects are the deci
sive factors.