The next set of unemployment figures are due to be released next week - and speculation indicates they'll go up even higher.

Unemployment was sitting at 5.1 percent at the end of last year, according to the data.

NZ Herald business editor at large Liam Dann speculates ahead of next week's release.

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Air New Zealand wants to tap into more sustainable aviation fuel - to meet net zero emissions by 2050.

It's aiming to cut well-to-wake jet fuel greenhouse gas emissions by 20-to-25-percent in five years, compared to pre-Covid.

Air New Zealand's Kiri Hannifin says this is the main way airlines can de-carbonise.

She says sustainable fuel is costly, but there's ongoing work looking at keeping airfare prices fair - especially for domestic travel.

"Why it's so expensive at the moment is because there's hardly any available, so the more demand there is, the more supply there'll be available - and that will help get the prices down."

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The Commerce Commission has confirmed it will not be formally putting the cost of flying under the microscope.

Rangitata MP James Meager has suggested the Government could help keep fares competitive by supporting regional airlines.

It's been revealed some flights to Pacific Island nations are cheaper than certain trips within New Zealand.

Commission Chair Dr John Small says flying short routes with low demand is very expensive.

"There's no law against charging high prices - that's the reality of things in New Zealand. If it's a monopoly - on a monopoly route - it's potentially able to be regulated."

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