The European Commission has argued that a fully-fledged banking union would need to rest on four pillars: a single deposit protection scheme covering all EU (or eurozone) banks; a common resolution authority and common resolution fund, at least for systemically important and cross-border banks; a single European supervisor for the same banks; and a uniform rule book for prudential supervision of all banks in Europe.
Iedereen die ooit betrokken is geweest bij een of andere vorm van bankentoezicht kan onmiddellijk zien dat deze vier pijlers behoedzaam moeten worden opgezet.