We believe that the transformation of marriage that has occurred in the comparatively short period of 40 years is too great a break from the past to be dismissed as a slow and grudging evolution that has not fundamentally changed family dynamics. Our ongoing studies of couple relationships reveal instead that change has been continuous and significant, not merely in younger couples who begin their relationship with more flexible ideas about gender, but also in older couples where the wife has worked long enough to change her husband’s values and behaviors.