I believe what is needed is to identify the root cause  6  BIS central bankers’ speeches  of the challenges Japan’s economy faces and take the most appropriate action to address them, no matter how long this may take.
However, the internationalisation of banking also increases the risk of contagion of banking problems. In order to reduce this risk, the core principles pay special attention to the supervision of cross-border banking. On this subject, the most important message from the core principles is that home country supervisors should practise consolidated supervision over their internationally-active banks.