I found this new study interesting. I think a lot of men may, too. Makiki Fuwa of the University of Tokyo just published an analysis of data from the 2002 International Social Survey Programme that looks at women in 31 countries.
She set out to learn whether cross-national differences in the association between women's economic independence and their attitudes toward marriage could be explained by national policies like family leave, publicly supported child care, and working hours.
Her findings suggest "it is not women's economic independence per se that reduces attractiveness of marriage; instead, it is the incompatibility between work and family life that lowers [economically independent] women's marriage aspirations."
Many men, when unsure of the stability of their marriages, fear their economically independent wives can get by without them and therefore do not want to be married. Here is evidence, from 31 nations, that work-family conflict is the real issue. If you can free up more of your time or money for child care and housework, you can free her to enjoy being married.