[…] when it comes to leadership, the only advantage that men have over women (e.g., from Argentina to Norway and the USA to Japan) is the fact that manifestations of hubris — often masked as charisma or charm — are commonly mistaken for leadership potential, and that these occur much more frequently in men than in women.
This is consistent with the finding that leaderless groups have a natural tendency to elect self-centered, overconfident and narcissistic individuals as leaders, and that these personality characteristics are not equally common in men and women.
from Stowe Boyd http://stoweboyd.com/post/129423129427