Beryl Nelson (Google) had a talk in March at a conference called "Voices - Creating Global Connections":
http://www.youtube.com/watch?v=ucMU5RmkxOc
Here are a few instructive slides from the first 7 minutes:
* Financial Performance: Companies with a higher proportion of women in their top management have better financial performance
..* from Georges Desvaux, Sandrine Devillard-Hoellinger, and Pascal Baumgarten: Women Matter: Gender diversity, a corporate performance driver, McKinsey Report, 2007; similar results in Catalyst study; and for differences in race, by Cedric Herring
* Better Innovation outcomes (Page, 2009, Cox 2001)
..* Mixed gender tech patents are more cited (Ashcraft et al, 2007)
* Teams with gender diversity are more productive; better decisions:
..* Malone et al, 2010: women make teams smarter
* Gender in teams and collective intelligence (higher collective intelligence is correlated with higher percentage of women)
..* Anita Woolley and Thomas Malone: Defend your Research: What Makes a Team Smarter? More Women, Harvard Business Review Report, June 2011