The quasi collapse of the global financial system during the crisis of 2007-2009 has triggered an extensive debate about the role of large complex banks. On the one hand, banks are seen as “too complex to fail”, and researchers and policy makers argue that the main danger is that financial institutions and markets are becoming “too big to understand” or “too complex to depict”, and therefore need to shrink and be simplified. On the other hand, bankers argue that caps on bank size are inefficient because both size and complexity help banks diversify risks and innovate to create additional profit … Read more