Here is an excerpt of the meat of the argument:
... the main reason for the uneven management sex ratio is our inability to discern between confidence and competence. That is, because we (people in general) commonly misinterpret displays of confidence as a sign of competence, we are fooled into believing that men are better leaders than women. In other words, 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.
Followed by:
The paradoxical implication is that the same psychological characteristics that enable male managers to rise to the top of the corporate or political ladder are actually responsible for their downfall. In other words, what it takes to get the job is not just different from, but also the reverse of, what it takes to do the job well. As a result, too many incompetent people are promoted to management jobs, and promoted over more competent people.And capped with:
So it struck me as a little odd that so much of the recent debate over getting women to "lean in" has focused on getting them to adopt more of these dysfunctional leadership traits. Yes, these are the people we often choose as our leaders — but should they be?
Most of the character traits that are truly advantageous for effective leadership are predominantly found in those who fail to impress others about their talent for management. This is especially true for women. There is now compelling scientific evidence for the notion that women are more likely to adopt more effective leadership strategies than do men.