The Finance Minister says the Government is striking the right balance with its deposit protection scheme.
It's planning to protect up to $50,000 in any bank account.
That would translate to about 40 percent of the value of deposits -- well below deposit insurance schemes in other advanced countries.
But Grant Robertson told Mike Hosking it would protect the basics in case of the worst.
"This really is about ,making sure that if the worst happens, they are protected, they can pay the mortgage, they can pay the groceries."
Robertson says insuring a larger amount could also encourage unnecessary risk-taking.
Prime Minister Jacinda Ardern says the Government hasn't decided on the full details of the scheme -- including how it would be funded.
But she told Mike Hosking it could be funded through a bank levy, with the Government covering the initial cost of setting things up.
"In other countries, a bank levy covers a cost of a bank regime like this. When we first establish it, we will need time for that to build."
Most developed countries already have a scheme in place.
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