Survey of opinions on demographic developments, current and hypothetic government policy regarding family planning: effects of policy on individual reproductive behaviour. Causes of declining birth-rate / role of government regarding employment facilities for women, youth, care for the aged / limiting immigration / opinion on expected de-juvenalisation and ageing of the population / demographic knowledge / population size / immigrants, foreigners: general attitude, remigration, facilities, civil rights, restricted immigration aged: employment, private versus public care for the aged, preferred housing situation when aged, old age pension ( AOW ) at age of 67, higher premiums for AOW / preferred way of habitation / demographic developments / value of having or getting children / combining raising children with paid work: actual situation, preference / important values in life and influence of having children on their fulfilment / pregnancy / planned future reproduction / opinion on government facilities to foster reproductivity: better leave-arrangements, financial ( fiscal ) advantages, more children's day- care centres, nurseries etc. / preferred facilities: influence on reproductive behaviour if implemented / government financing through tax-raise or cutting other expenses / differences in tax with and without children / if cuts necessary, what facilities may be abandoned and would that influence respondent in having ( more ) children / favourite leave-arrangement, financial arrangement ( kinderbijslag ) / work situation after last pregnancy. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ education/ politics/ religion