Simon Upton says his proposed approach to monitoring spending applies to all governments.
And pessimism will have only got worse after going into lockdown.
UPDATED: Prime Minister Jacinda Ardern defends not sacking her health minister.
Health Minister offers resignation over lockdown breach.
UPDATED: The huge public investment requires transparency, says prime minister.
Kiwifruit soaks up out-of-work tourism and hospitality staff.
PM is "very aware" of the negative economic impact of lockdown.
Safe harbours, electronic signatures, hibernating debts on cards for businesses facing insolvency.
What economic scenarios is the government considering?
Officials give guidelines on what is higher risk.