In Aotearoa New Zealand, citizenship functions as an exit permit. An adult New Zealand citizen is free to choose to become a foreign denizen.
A denizen (of New Zealand) is a person living and working in New Zealand, but who doesn't qualify for a New Zealand passport. New Zealand has three tiers of denizenship, although the first tier are actually citizens who are perceived as immigrants. Too many New Zealanders – probably increasing numbers of New Zealanders – tend to regard all New Zealand residents who don't look or sound Pakeha, Māori, Pasifika, white South African, or Australian as non-citizens; as not real New Zealanders.
New Zealand is increasingly becoming a country with a high denizen-to-citizen ratio. New rules intended to make it more difficult for New Zealand permanent residents to become citizens of Aotearoa New Zealand can be expected to keep more immigrants here. That may be the intention.
Probably the countries with the world's highest denizen to citizen ratios are the United Arab Emirates and Qatar.
First-tier denizens don't count as denizens, because they are actually citizens; they are just casually perceived by many to be denizens. Citizens of Indian or Chinese heritage whose presence in New Zealand dates back to the nineteenth century may be perceived as denizens now, whereas they were once perceived as citizens.
Second-tier denizens are those people living in New Zealand with 'permanent residence' status. Except that we would regard New Zealand resident Australians as citizens, even if most of them are not, technically.
Third-tier denizens are any 'visa-holders' living in New Zealand with some 'right to paid work' provision in their permits. This does include many international backpackers and many international students.
The denizen to citizen ratio is the number of resident adult second- and third-tier denizens divided by the number of resident adult citizens. I don't know what it is, but am guessing that it is about one-to-three, and growing. (In the United Arab Emirates the denizen to citizen ratio is about nine-to-one.)
Is the new policy essentially an immigrant-retention scheme? We need our immigrants to stay, so in that sense it may be good policy. And, as the financial literati keep telling us, we are going to need many workers in the 2030s and 2040s to sell or otherwise provide services to our seniors. It's just a shame that New Zealand has so many jobless young people, including many NEETs – over 20% of women aged 20 to 24 counted as NEETs in early 2026 – who have finished their tertiary education yet are not able to secure employment.
Young and Old
Just a note, if a decision is ever made to income-test New Zealand Superannuation, then many New Zealanders aged over 65 will choose retirement over employment, aggravating the pensioner to worker ratio. New Zealand has one of the world's highest pensioner employment rates, thanks to its universal system of retirement income which enables people to delay retirement. Statistics New Zealand should keep more granular data about the employment attributes of people aged over 65.
And they should keep statistics of the numbers of qualifying people aged over 65 who choose to not opt-in to New Zealand Superannuation. The fiscal cost of qualifying older cash millionaires signing up for a superannuation income which they don't need – all citizens and denizens with permanent residence – may be smaller than is widely presumed. We should find out.
The cost of income-testing seniors may be less than the actual savings. Further, given that the universal model works best for seniors, it most likely works best for juniors, too. Too many NEETs are trapped into the targeted benefit system. New Zealand is too poor to sideline its young citizens; too many respond by using their citizenship as an exit certificate; exit from Aotearoa New Zealand.
Keith Rankin (keith at rankin dot nz), trained as an economic historian, is a retired lecturer in Economics and Statistics. He lives in Auckland, New Zealand.

Keith Rankin: Has Sweden Become A De Facto Apartheid Narco State?
Bruce Mahalski: Change In The Weather #194
Binoy Kampmark: Dangers To The Fourth Estate - The 2026 World Press Freedom Index
Richard S. Ehrlich: Strait Of Hormuz Blockades & Thailand's Land Bridge
Keith Rankin: 'I Am A Semite'
Binoy Kampmark: Show Me The Money - A Loutish Administration Confronts A Craven Congress