This is an age-old question. And the answer is complicated.
Women in high-level leadership positions, such as corporate CEOs, when studied, seem to exhibit the same sorts of leadership behaviors as their male counterparts. That is probably because the demands of the leadership role require certain actions and behaviors to succeed. In addition, because of the hurdles that women must leap to get to the top (leadership and gender expert, Alice Eagly, refers to this as the "labyrinth" that women, but not men, need to go through), it could be the case that only women who exhibit the same sorts of leadership styles and behaviors as male leaders make it through. So, studying leaders at the top, gives the impression that there are no big differences in how men and women lead.
You get a somewhat different picture if you ask followers and leaders about male and female leaders. They notice differences that are in line with stereotypes about men and women, reporting that female leaders are more nurturing, empathic, and responsive than male leaders, but they will also report the negative side (e.g., moody). Male leaders, on the other hand, are perceived to be more action-oriented and more focused on tasks. As a Catalyst study concludes that according to leaders and followers in the workplace, "women leaders take care, men leaders take charge." Realize, however, that this involves people's perceptions of leaders, colored by stereotypes and expectations.
Finally, there is a growing body of research that has studied the leadership styles and leadership "potential" of men and women, typically men and women managers (but also women in non-managerial positions). For example, using the theory of transformational leadership as an indicator of successful leadership (transformational leaders are inspirational, positive role models, concerned about followers, empowering, and push followers to be creative and take chances), research shows that women, as a group, have more transformational qualities than men. In other words, and based on this research, women have more leadership potential and tend to lead more effectively than men (I discussed this in an earlier post).
So, what are the implications? Well, as attitudes about women leaders change (they are changing, albeit ever so slowly) and the "labyrinth" becomes less difficult to navigate, we expect more to women attain high-level leadership positions. Noted leadership scholar, Bernard Bass, predicted that by the year 2034 the majority of high-level leaders will be women, based on their more transformational qualities. Of course, men in leadership positions are also realizing that the old way of leading - taking charge (command and control) - may not be as effective in today's world and in the future, so they learn to adapt and change how they lead.
What are your thoughts?
Books reporting research on gender and leadership:
Alice H. Eagly & Linda L. Carli (2007). Through the Labyrinth: The Truth About How Women Become Leaders. Harvard Business School Press.
Karin Klenke (2004). Women and Leadership: A Contextual Perspective. Springer Publishing.