Concerns over how much another public holiday will impact businesses

Matariki is estimated to cost businesses between 337 and 448 million dollars - about double the amount initially projected by the Employers and Manufacturers Association.

It will be celebrated as a public holiday for the first time next year.

Chief Executive Brett O'Riley says it seems good at face value, but from the perspective of employers - it's incredibly damaging.

He says we'd all like another public holiday, but the country can't rely on printing money as a way of surviving long term.