Hypergamy is the act or practice of seeking a spouse of higher socioeconomic status.
According to Wikipedia:
Some evolutionary psychologists believe that women exhibit mate-selective preferences for spouses who are greater than them in terms of attained physical attractiveness, educational level, job status, social standing, and capital accumulation.
Is there any research to support the belief that women are more disposed to hypergamous behavior than men?
For purposes of narrowing the scope of the claim, let's focus on women living in any first-world nation, although any of the categories of preferences listed above (physical attractiveness, educational level, job status, social standing, and/or capital accumulation) would be acceptable.