Play now 28 mins
Andy Haldane, the Bank of England director for financial stability, says that if banks leave London because of tough regulation it might be a "price worth paying". He offers a tough analysis of what's gone wrong and how to put it right. Plus can we learn about financial markets from animals and plants?
Also, a big global company decides there's money in wind. We interview the chief executive of GE Power on why he's investing big in wind farms.
Plus how Icelandic citizens use knitting to keep their spirits up in the economic dark.