Seeking the Mirrored Partner
Previously I mentioned the greater the age difference from the husband, the lower the wife’s life expectancy. Here is another evidence from Booth School of Business, University of Chicago. Also see Steve Landsburg’s The Big Question.
(Part III. E) As expected, we find that the users of the dating service prefer a partner whose age is similar to their own. Women who are single try to avoid divorced men, while divorced women have a preference for a partner who is also divorced. Similarly, single men avoid divorced women, but divorced men have no particular preference to date a divorced woman. Both men and women who have children prefer a partner who also has children. Members with children, however, are much less desirable to both men and women who themselves do not have children. …
Regarding height, we find that men typically avoid tall women, while women have a preference for tall men. Men have a strong distaste for women with a large BMI, while women tend to prefer heavier men. The estimates of income preferences show that women place about twice as much weight on income than men. … Regarding education, we find that both men and women want to meet a partner with a similar education level. While women have an overall strong preference for an educated partner, but also have a relatively small tendency to avoid men who are more educated than themselves, men generally shy away from educated women. The estimated same-race preferences show that both men and women have a preference for a partner of their own ethnicity. Finally, we find that both men and women have a preference for a partner of the same religion.
Sadly, the more “ordinary” it looks, the more hard we could find some persuasive but non-trivia explanations for the situation. It’s like air, existing long before realized.

