Study title

Investigations on the social situation of the work force; interactions between qualification, job, life cycle income curve and social conduct and status outside of work; differentiation and leveling processes of the social structure. Topics: Demographic data of head of household: name, occupation, date of birth, place of residence and job. Demographic data of parents: names, occupations, place of residence. Date of marriage and as appropriate name and birth dates of children. Initial inventory (items brought into marriage and other possessions) of the spouses; separation inventory (at death of one spouse).