The Business: Trouble at the Treasury

Following the resignation of David Laws , the chief secretary of the Treasury, we ask how big a blow it is for the government. It follows revelations about his parliamentary expenses. Nicholas Watt joins us on the line from the Guardian's office in Westminster to look more closely at the man who's stepping into the job, Danny Alexander. As the eurozone crisis deepens, economist Costas Lapavitsas discusses where the growth is going to come from. Plus, Guardian columnist Nils Pratley tells us why Prudential's deal for AIA is under threat and what's next for BP as its share price continues to fall .