Social and economic causes and consequences of divorce in the Netherlands since the 1940s. This study contains many questions about marriage, divorce, remarriage, fertility, labour force participation, life course, and social networks of the respondent, it's parental family and it's (previous) partner. Questions about relation with current and previous partner, housing, finance, family and friends, children, at start of relation, 5 years later, now (current relation). How did r. meet (previous) partner, why marry, why cohabitation / partner divorced before. Information on the current and previous household situation: division of household tasks / which part of household income earned by which partner / financial difficulties / holidays without partner / political preference / does r. (female) use family name of partner. Questions about the seperation: whose initiative, why, relation with ex-partner, alimentation / did r.'s parents, siblings, uncles and aunts divorce. Background variables of respondent, its family and (previous) partner: education / religion / where born / children.