WASHINGTON — The decline of two-parent households may be a significant reason for the divergent fortunes of male workers, whose earnings generally declined in recent decades, and female workers, whose earnings generally increased, a prominent labor economist argues in a new survey of existing research.

David H. Autor, a professor at the Massachusetts Institute of Technology, says that the difference between men and women, at least in part, may have roots in childhood. Only 63 percent of children lived in a household with two parents in 2010, down from 82 percent in 1970. The single parents raising the rest of those children are predominantly female. And there is growing evidence that sons raised by single mothers “appear to fare particularly poorly,” Professor Autor wrote in an analysis for Third Way, a center-left policy research organization.

In this telling, the economic struggles of male workers are both a cause and an effect of the breakdown of traditional households. Men who are less successful are less attractive as partners, so some women are choosing to raise children by themselves, in turn often producing sons who are less successful and attractive as partners.

“A vicious cycle may ensue,” wrote Professor Autor and his co-author, Melanie Wasserman, a graduate student, “with the poor economic prospects of less educated males creating differentially large disadvantages for their sons, thus potentially reinforcing the development of the gender gap in the next generation.”