More CEOs Sharing Control At the Top.

The article discusses the growing incidence of firms splitting their chief executive and board chairmanship duties. Between 2007 and 2012 the fraction of Standard & Poor's 500 companies with an independent outside director has increased from 12% to 20%. Credit-ratings firm Moody's Corp. is among firms that have taken the chairman's job away from the chief executive officer in response to shareholder pressure.