Nationaal onderzoek vruchtbaarheid en ouderschapsmotivatie 1975

Motivation for parenthood / details on pregnancies, marriage and family size / knowledge of contraceptives / family-planning / occupational activities of wife and husband. Background variables: housing situation/ income/capital assets/ religio

Vrijwillige vervroegde uittreding 1992

Motives to make use of collective early retirement settlements/ financial aspects/ working conditions/ pressure of work/ health/ attitude of R's partner to early retirement/ social contacts/ need for leisure, time for hobbies/ self-esteem/ image of older employees/ respondents who are in early retirement: assessment of the consequences of early retirement/ r's health condition Background variables: basic characteristics/ household characteristics/ occupation/employment/ income/capital assets/ educatio