Changes in the Location of World Population
A recent article in Stuff raised some interesting challenges in terms of how we might best support changing global demographics if everyone in the world could move to whatever country they wanted to which is predicted would swell NZ’s population by 231 per cent.
United States-based research firm Gallup's most recent Potential Net Migration Index (PNMI), a 2015-2017 survey of more than 450,000 adults from 152 countries, has revealed that New Zealand would see a substantial influx of people if migration were free.
If a country's PNMI were -100 percent that would mean the total adult population would leave if they had the opportunity.
The PNMI showed populations would mostly grow only in New Zealand, Australia, Oceania, North America and Europe if everyone moved wherever they wanted.
Populations in sub-Saharan Africa, the Middle East, North Africa, Asia, Latin America and the Caribbean would shrink.