The view from the top of business. Presented by Evan Davis, The Bottom Line cuts through confusion, statistics and spin to present a clearer view of the business world, through discussion with people running leading and emerging companies. The programme is broadcast first on BBC Radio 4 and later on BBC World Service Radio, BBC World News TV and BBC News Channel TV.

Evan and three top executives discuss the curiosities of selling their expertise, knowledge the customer doesn't have. If consumers are in a state of relative ignorance, how can they shop around? What stops them getting ripped off? They also swap thoughts on religion in the workplace.

Joining Evan are Heather McGregor, managing director of headhunters Taylor Bennett; Rupert Soames, chief executive of mobile energy company Aggreko; Gavin Oldham, chief executive of retail stockbroker The Share Centre.

Producer: Ben Crighton
Editor: Stephen Chilcott.