...Although male and female members of the House once voted in at least somewhat different ways, this was no longer true as of the mid-2000s.
However...
But “congressional action” involves a lot more than roll call voting. And here’s where larger differences between male and female legislators emerge — differences that could affect Congress as a whole if the representation of women were increased.
For one, women are more likely than men to advocate for issues often associated with women’s interests — child care, women’s health, abortion, pay equity and the like. There are many studies, but see Michele Swers’s two books to start with. This shows up, for example, in in floor speeches and legislative debates, where women are more likely to discuss issues in terms of women’s interests. (Women are also more likely than men to give floor speeches, period.)
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Other research suggests that women may be more effective legislators than men. Craig Volden, Alan Wiseman and Dana Wittmer find that, within the minority party, women are able to get their sponsored bills further through the legislative process. Sarah Anzia and Christopher Berry have shown that women sponsor and co-sponsor more bills than men do, and deliver about 9 percent more funding to their districts.