Immigration is heating up as an election issue, but at the same time there are warnings New Zealand may struggle to get the skilled migrants it needs in the future.
New Zealand has been picking trained individuals for permanent residency since the 1980s, but China is likely to increasingly hang on to its qualified people and there will be increased competition world wide.
Philippa Tolley has been exploring how immigration is shaping New Zealand as we head for a population of 5 million.
