Abstract
Banks are not the only reason for the crisis which we live in today. The states have also a share of responsibility by putting in work expansionist economic policies and massively injecting liquidities in the economy to maintain purchasing power by growing debt. The reproach made at the banks during investments has developed activities resting directly on their equities to compensate for their weak margins of their traditional activities; the credit and the council. The idea is then to compartmentalize the banks of investment in retail banking and the deposit banks.
