Women are more honest leaders?

I was intrigued by this recent passage :

An MIT economist, Esther Duflo, looked at India, which has
required female leaders in one-third of village councils since the mid-1990's.
Professor Duflo and her colleagues found that by objective standards, the women
ran the villages better than men. For example, women constructed and maintained
wells better, and took fewer bribes.

- 2/10/08 article in the New York Times by Nicholas D. Kristoff