Standard Life will acquire rival Aberdeen Asset Management for £3.8bn - the move would create the UK's largest fund management group, managing £660bn in assets with an £11bn market capitalisation. Why has the deal been done? Share Radio's Ed Bowsher was joined by Ken Odeluga, market analyst at City Index, for more on this, plus GM sells its European brands Vauxhall and Opel, Informa's revenue rises 11 percent and possible tax rises in this week's budget.