The first is one that you may have come across. Warren Buffett is an American investor, who many of you may have heard of. The companies in his investment portfolio currently employ hundreds of thousands of people, and Buffett has been investing since the 1950s, so he has employed millions more.
I doubt that further changes in prudential regulation are the right instrument for addressing the sovereign- bank nexus, taking into account that sovereign risk should first and foremost be addressed by strengthening the sustainability of public finances.