Michael Lewis: 'Wall Street has gone insane'

Michael Lewis - Flash Boys

On a sliding scale of difficulty, writing a general-interest book about high-frequency trading is slightly harder than making baseball statistics interesting, but easier than animating the role played by quantitive analysis in the 2007 financial collapse.

Key EU banking reform laws approved

Five Euro Note

European lawmakers on Tuesday approved key laws reforming the euro zone's banking sector, completing a "banking union" which will protect taxpayers from having to pay for costly bank bailouts in future.