Why Women Make Boardrooms Better

1:45 AM ET Wed, 1 Aug 2012

"We have looked at over 2500 companies globally going right back to 2005, so we have a huge amount of data, we found that companies with more than one woman on the board outperform those with no women on the board by 26 percent," Michael O'Sullivan, UK research and global portfolio analysis managing director at Credit Suisse Private Bank, told CNBC.