There’s not much hard data on this, Ms. Hymowitz acknowledged, but a recent Ms. magazine report said 55 percent of the women who voted in November said they were feminists up from 46 percent who said that after the 2008 election…

This is a “hard-line feminist approach” and it’s been a huge success, said Ms. Hymowitz, senior fellow at the Manhattan Institute, a domestic-policy think tank in New York City, and author of “Manning Up: How the Rise of Women Has Turned Men into Boys.”

Throw in high rates of college-educated women on the hunt for careers; young women schooled in women’s studies; young women who think the lack of birth control and sex education are major problems; and young women going into media outlets, who talk with each other and read popular feminist blogs such as Jezebel, and you have the makings of a “resurgent feminism,” especially among middle- and upper-class women, Ms. Hymowitz said.