主播大秀

Iran's President Hassan Rouhani has told the World Economic Forum at Davos that his country is open for business. But does this mean that the US government is happy for its companies to rush in? Robert Peston asks the US Treasury Secretary Jack Lew.

Also in the programme, hosted by Manuela Saragosa, we hear the truth about the etiquette, gossip and horse-trading at the annual Davos shindig, as collated for us by Paul Zwillenberg of the Boston Consultancy Group. Plus, we ask Alan Clark, head of SAB Miller, what beer sales tell us about a country's economy.