Sheryl Sandberg calls for policy changes to raise women's pay

Facebook COO says equal numbers of men and women should apply for jobs and run for political positions to address gender gap

Facebook's Sheryl Sandberg has called for public policy changes to help improve women's pay and claimed that women underestimate their worth, which prevents them from asking for wage rises.

Sandberg, the chief operating officer of Facebook, told BBC Radio 4's Desert Island Discs on Sunday she believed job openings should be contested by equal numbers of women and men.