JUST ANOTHER REVOLUTION THAT ATE ITS OWN:

Take two contemporary social problems: teenage pregnancy and the incarceration of young males. Research by Sara McLanahan at Princeton University suggests that boys are significantly more likely to end up in jail or prison by the time they turn 30 if they are raised by a single mother. Specifically, McLanahan and a colleague found that boys raised in a single-parent household were more than twice as likely to be incarcerated, compared with boys raised in an intact, married home, even after controlling for differences in parental income, education, race, and ethnicity. Research on young men suggests they are less likely to engage in delinquent or illegal behavior when they have the affection, attention, and monitoring of their own mother and father.

But daughters depend on dads as well. One study by Bruce Ellis of the University of Arizona found that about one-third of girls whose fathers left the home before they turned 6 ended up pregnant as teenagers, compared with just 5 percent of girls whose fathers were there throughout their childhood. This dramatic divide was narrowed a bit when Ellis controlled for parents' socioeconomic background--but only by a few percentage points. The research on this topic suggests that girls raised by single mothers are less likely to be supervised, more likely to engage in early sex, and to end up pregnant compared with girls raised by their own married parents.

It's true that poorer families are more likely to be headed by single mothers. But even factoring out class shows a clear difference. Research by the Economic Mobility Project at Pew suggests that children from intact families are also more likely to rise up the income ladder if they were raised in a low-income family, and less likely to fall into poverty if they were raised in a wealthy family. For instance, according to Pew's analysis, 54 percent of today's young adults who grew up in an intact two-parent home in the top-third of household income have remained in the top-third as adults, compared with just 37 percent of today's young adults who grew up in a wealthy (top-third) but divorced family.

Why is this? Single mothers, even from wealthier families, have less time. They are less likely to be able to monitor their kids. They do not have a partner who can relieve them when they are tired or frustrated or angry with their kids. This isn't just a question of taking kids to the array of pampered extracurricular activities that many affluent, two-parent families turn to; it's about the ways in which two sets of hands, ears, and eyes generally make parenting easier. 

This recognition that it is easier to parent, and that kids are more likely to thrive, in a two-parent home might  be one reason why the divorce bug seems to be on the wane in progressive enclaves like Park Slope and Seattle, according to the New York Times. After the turmoil of the divorce revolution of the 1970s and early 1980s, a marriage mindset has reasserted itself among college-educated Americans. (Barack and Michelle Obama embody the new mindset; Newt Gingrich and his three wives embody the '70s mindset.) Today, college-educated Americans are divorcing less, steering clear of nonmarital childbearing, and enjoying relatively high-quality marriages. By contrast, as I recently pointed out in When Marriage Disappears, Americans without college degrees are divorcing at high rates, witnessing dramatic increases in nonmarital childbearing, and seeing their marital quality deteriorate.

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