Major changes in childbearing patterns are continuously taking place in the majority of low-fertility populations with postponement being virtually universal. Almost everywhere the two-child family became dominant. Proportions of childless women and one-child families were increasing recently....

Early in the 21st century modern contraception -- primarily hormonal methods, advanced IUDs, sterilization and condoms -- has become the main instrument of birth regulation in Northern and Western Europe and gaining ground in Southern Europe and the formerly state socialist countries of Central...

Societal conditions for early and high rates of childbearing were replaced by conditions generating late and low levels of fertility common in Western countries. Central among factors shaping the latter behaviour (job insecurity, unstable partnership relationships, expensive housing, and...