The Bottom Line - coproduced by the BBC and The Open University - convenes a weekly meeting of heads of business to discuss the issues that resonate in the boardroom and affect all our lives.
This week, Evan's top business guests hail from retail and advertising. They swap thoughts on consumer research. Companies spend money to find out how their customers spend theirs, but do they learn anything useful?
They also debate what purpose business awards serve. Can they actually help a company be more successful?
Evan is joined in the studio by Ian Cheshire, chief executive of home improvement retail company Kingfisher. And from the world of advertising, Cilla Snowball, group chief executive and chairman of Abbott Mead Vickers BBDO, and David Jones, global chief executive of Havas Worldwide.
The Bottom Line can be heard on BBC Radio 4 on Thursdays and Saturdays, or via Listen Again; the same episodes can be seen on the BBC News Channel at weekends and via BBC iPlayer.