When parents are educated about how not to involve children in their conflicts and co-parent amicably, a lot of the ill effects of divorce can be alleviated. Divorce is always painful. But kids in a high-conflict marriage or low-conflict but contemptuous ones are often better off in the long run when the parent can disengage.

Hollywood overstates both the romance of marriage and the prevalence of divorce. Celebrities have divorce rates that are atypical and higher than most couples. I suspect that in celebrity marriages, there are huge egos on both sides and they do seem to encourage unrealistic expectations about falling in love. The problem with our romantic culture is that you can love someone you don't respect and the marriage can run out of gas with that formula. Respect is essential - not just respecting your partner but being sure your partner equally respects you.

Women are told that we can have the most exciting, glamorous, demanding, rewarding careers ever but we also have to be constantly sexy and sexually interested, and when we have children we have to spend more time with our kids. Of course you can't really do all three of those things at once, so we feel this tremendous stress.

Almost all scholarly research carries practical and political implications. Better that we should spell these out ourselves than leave that task to people with a vested interest in stressing only some of the implications and falsifying others. The idea that academics should remain "above the fray" only gives ideologues license to misuse our work.

Increasingly, men are realizing exactly that - that having an educated, economically independent partner reduces the pressure on them to be the sole provider. Many men are also beginning to understand that participating in housework and childcare can be rewarding. Women with higher education and/or earnings are so much less likely than other women to divorce, that by age 40, they are more likely to be married than any other group of women.

A two-parent family based on love and commitment can be a wonderful thing, but historically speaking the "two-parent paradigm" has left an extraordinary amount of room for economic inequality, violence and male dominance.

Families have always been in flux and often in crisis; they have never lived up to nostalgic notions about "the way things used tobe." But that doesn't mean the malaise and anxiety people feel about modern families are delusions, that everything would be fine if we would only realize that the past was not all it's cracked up to be. . . . Even if things were not always right in families of the past, it seems clear that some things have newly gone wrong.