[Changes in family and cohabitation conditions in 14 industrialized countries].
"The purpose of the study is to review some of the demographic trends which have substantial influence on social security budgets. Thus the authors deal with nuptiality and...[divorce] with changes in family and household structures...[and] especially with one-person households and one-parent families." Data are from 12 selected countries of Europe plus Canada and the USSR. The general trends observed include a decline in nuptiality, increasing age at marriage, high and increasing divorce rates, and an increase in consensual unions. (SUMMARY IN ENG AND RUS)