So here is their article on 'Do “female bosses tend to be better managers, better advisers, mentors, rational thinkers”?'
The answer, as you will find is rather subjective. However, the note it ends up with is:
"In terms of their day-to-day actions, women managers should have advantages. But the answer is really not so simple because managers do well only if people accept their authority. ...In roles that have been held mainly by men, women’s competence is often questioned... They have to be extra-competent to be recognized as effective."
"The best managers, female or male, are those who admit that the corporate structure favors men and who recognize their responsibility to help others follow in their footsteps."
and finally, the last nail on the coffin which I thought I was the only one to notice:
"Many people still see an incongruity between the female gender role and the leader role, which makes it harder for women to attain corner office positions and puts them in an unwelcome spotlight when they do. In 2006, after PepsiCo announced that Indra Nooyi would become its new CEO, the headline of the New York Times story was, “A Woman to Be Chief at PepsiCo.” No headline has ever announced “A Man to Be Chief at Acme Corp.”"