Vince Cable live webchat Tuesday 20 December 1.30-2.30pm

We're delighted that Vince Cable, Secretary of State for Business, Innovation and Skills, will be coming into GNHQ to join us live for a webchat on Tuesday 20 December. A LibDem MP (for Twickenham) and an economist, Vince has been a leading commentator on the banks and their role in the economic crisis. He holds one of the key posts in the coalition. Ask your questions here.