When it comes to one of the oldest corporate takeover defenses around, more and more companies are saying no. After prompting by shareholders, 46 companies in the Standard & Poor’s 500-stock index have agreed to hold annual elections for all their directors, a corporate governance initiative run out of Harvard Law School said on Wednesday.

http://dealbook.nytimes.com/2013/03/13/more-companies-holding-annual-board-elections-group-reports/?nl=business&emc=edit_dlbkam_20130314