Evan Davis is joined by a panel of top business guests to brainstorm the world economy - where might future growth come from? He asks whether management should be responsible for the health of their employees: is a healthy worker more productive? Evan is joined by Adrian Fawcett, chief executive of the General Healthcare Group, Hugh Hendry, hedge fund manager and founder of Eclectica Asset Management, and Lucius Cary, founder and managing director of Oxford Technology Management.