It might just pay to be a pig. Men who hold traditional views about women's roles - like, a wife's place is in the home - make $8,500 more a year than guys with more liberated views, a new study shows.

It might just pay to be a pig. Men who hold traditional views about women's roles - like, a wife's place is in the home - make $8,500 more a year than guys with more liberated views, a new study shows.