Unlike many Western nations, where regulators stress tests many banks simultaneously based on standardised risk scenarios, Japan had relied on stress tests conducted individually by each bank.
As prolonged ultra-low interest rates prod major banks to diversify operations in search of yields, however, Japanese authorities decided to align their approach to that of their overseas counterparts, the Bank of Japan (BOJ) said in a report.
For the first time, the BOJ and banking regulator Financial Services Agency (FSA) conducted joint stress tests on five major financial institutions in December, it said.
The regulators presented its findings to the five institutions - Japan's three megabanks plus Norinchukin Bank and Sumitomo Mitsui Trust Holdings - with feedback in July.
The BOJ and FSA will conduct such stress tests regularly, with the one this year likely to scrutinise how resilient the financial institutions are to risks posed by COVID-19, the report said.
"The biggest challenge would be on how to set the baseline and 'tail event' scenarios that take into account the impact from the coronavirus pandemic," the report said.
The findings of the stress tests will not be published and used mostly as a basis for communication between the regulators and financial institutions, it said.
(Reporting by Leika Kihara. Editing by Gerry Doyle)
By Leika Kihara
