In the cut throat world of work, can bosses be kind? Claudia Hammond unpicks the psychological evidence from around the world to find out if it’s possible for managers to be both kind all the time and successful.

The quest starts with Thom Elliot Co-founder of Pizza Pilgrims in the UK, who deliberately set out to foster a kind culture in a sector not exactly known for its benevolence. They're joined for pizza by Prof Robin Banerjee, architect of the Kindness Test to discuss the findings and examine whether kindness in business really does result in success. Joe Folkman is the perfect person to ask. He runs an evidence based leadership development firm in the US. It turns out there's a strong correlation between being likeable and effectiveness. Such concepts are backed up by a relatively new field of research called 'ethical leadership' pioneered by Professor Mike Brown.

Claudia meets former head teacher Ros McMullen who tells some home truths about leadership in a culture of relentless pressure and accountability.

Plus Lisa Smosarski, editor in Chief of Stylist magazine shares shocking office stories of the 'Devil Wears Prada' era and discusses wider societal shifts that may be contributing to a kinder culture in her industry.

Presenter: Claudia Hammond