A psych study found that women actually have dominant roles in marriage relationships when it comes to anything involving the family unit or couple, including vacations: http://www.msnbc.msn.com/id/19713567/
This of course flies in the face of a bunch of other studies, but as the article points out most other studies looked at how much money each couple made and used that as a main variable, whereas in this study they asked each couple who makes the decisions on what subjects and used that as their main criteria. I'd like to see this study repeated several times, but at the same time anecdotally it makes sense, or to quote a very amusing movie: "Yes, the man is the head of the house, but the woman is the neck. And the neck can turn the head anyway it wants." (Bonus points to whoever recognizes that quote).
An interesting commentary on how race is perceived in Brazil and how goverment regulations there might actually be reverting the national mentality back to the way it was in the 1880s: http://www.guardian.co.uk/comment/story/0,,2124080,00.html