Dunn concluded that "Not once across all ages and countries ...
did females show a preference for males significantly younger than male preferences for females" and that there was a "consistent cross-cultural preference by women for at least same-age or significantly older men".
There are also social theories for age differences in relationships as well as suggested reasons for 'alternative' age-hypogamous relationships.
Age-disparity relationships have been documented for most of recorded history and have been regarded with a wide range of attitudes dependant on sociocultural norms and legal systems. Relationships with age disparity of all kinds have been observed with both men and women as the older or younger partner.
Thus, both sexes will have to compete and be selective in mate choices.
These two theories explain why natural and sexual selection acts slightly differently on the two sexes so that they display different preferences.
Actress Robin Wright, 47, is engaged to fellow actor Ben Foster, 33.The study found that, as supported by other academic studies, most men preferred younger, physically attractive women, while most women, of any age, preferred successful, established men their age or older.The study found very few instances of older women pursuing much younger men and vice versa.One woman, who is married to a man 14 years younger, said the only time she feels threatened by her age is when she looks in the mirror.But that fear has forced her to come up with her own solution to the issue. ’ Your answer could be, ‘I’m going to get a facelift.’ My answer is, ‘I’m going to be such a beautiful person inside that it’s going to shine through to the outside,'” she told the magazine.