Does increasing the number of women on a company's board boost its financial performance? It's a popular narrative, but Manuela Saragosa speaks to Professor Renee B Adams of Said Business School at Oxford University, who claims there is no evidence to support it. And she asks Gay Collins of campaigning group the 30% Club whether it even matters.

Plus, how do you tell a male colleague that he's wrong without hurting his feelings? Or interact with a male employee without threatening his ego? Comedian Sarah Cooper has some tongue-in-cheek tips for the aspiring female executive.

(Picture: Young businessman being disciplined by female boss; Credit: LukaTDB/Getty Images)