Board quotas: a failed experiment?

I posted a comment last week that challenged the "blunt stick" thesis that increased business performance is one consequence of appointing more women to corporate board positions. After pressing the "post" button, I steeled myself to receive a barrage of hate mail, from people that fervently believe that the appointment of women onto boards is causative to increased business performance. However, none arrived, although several people provided positive feedback (thank you).

The response made me wonder whether people are starting to move on. If this article, entitled Norway, France and Finland tried to help women by using quotas on corporate boards. It hasn’t worked is indicative, then maybe they are. The title says it all really. Given this, are we now prepared to admit that quotas are probably not the answer? Perhaps we really should bite the bullet, and start looking elsewhere for possible causes and explanations of how boards can or should influence business performance.

As always, I welcome your feedback—because I'm in learning mode as much as anyone else!