RBNZ governor Adrian Orr says there is a need for an urgent and collaborative response.
Grocery suppliers say 'own' brands, like Pam's, are forcing them off the shelves. The supermarket owners say they're an essential choice, beloved by their customers.
Banks are wrongly trying to hide behind the Anti-Money Laundering and Countering Financing of Terrorism Act to bully their customers over account names.
The Commerce Commission heard claims about predatory and misleading behaviour by supermarkets in its second day of hearings on grocery market competition.