"The report, “Women at the Wheel,” does not speculate on why female executives improve a company’s chance of success, nor did it study companies where only females are involved. But it finds that companies have a greater chance of either going public, operating profitably or being sold for more money than they’ve raised when they have females acting as founders, board members, C-level officers, vice presidents and/or directors.

interesting read, but wish it went into more detail about why these companies are more successful beyond the presence of women..seems a bit incomplete

Correlation != causation

Possible example (I'm not saying I support this thesis): maybe women naturally go for less risky ventures?