From Kate Bolick’s article on the new single women:
Or take 1940s Russia, which lost some 20 million men and 7 million women to World War II. In order to replenish the population, the state instituted an aggressive pro-natalist policy to support single mothers. Mie Nakachi, a historian at Hokkaido University, in Japan, has outlined its components: mothers were given generous subsidies and often put up in special sanatoria during pregnancy and childbirth; the state day-care system expanded to cover most children from infancy; and penalties were brandished for anyone who perpetuated the stigma against conceiving out of wedlock. In 1944, a new Family Law was passed, which essentially freed men from responsibility for illegitimate children; in effect, the state took on the role of “husband.” As a result of this policy — and of the general dearth of males — men moved at will from house to house, where they were expected to do nothing and were treated like kings; a generation of children were raised without reliable fathers, and women became the “responsible” gender. This family pattern was felt for decades after the war.
The piece is fascinating throughout. See also her interview with Edith Zimmerman. I have a pet theory that alongside the gender dynamics Bolick talks about, rapid improvements in the entertainment field are raising the marriage “reservation wage” for men and women alike.