The Reserve Bank's controversial Open Bank Resolution, which could leave depositors facing loss if a bank falls over, isn't the only tool in the kit and gives the government breathing space in the unlikely event a major lender collapses, the regulator says.
Central bank head of prudential supervision Toby Fiennes told the Institute of Directors in Wellington "OBR would not be the only option in a crisis" and it can work alongside other tools.
"A government could still decide to bail out a bank or allow a bank to go into liquidation, if it felt the risks of doing so were small," Fiennes said. "But it is critically important to have a tool such as OBR in the crisis toolkit to maximise options for the authorities of the day."
The OBR scheme would mean a failed bank has to write down the value of the most pressing unsecured liabilities almost immediately, so service could resume a day after an insolvency event or statutory management to allow customer transactions to keep flowing.
The policy's ultimate goal is to place the cost of failure on the shareholders, while providing the flexibility to assign losses to creditors without unnecessarily disrupting banking services.