I think there are already 450,000 kiwis resident in Oz, and this forecast for another 400,000 next 15yrs.
And these next 400k may be replaced by migrants in NZ. What a great plan.
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NZ could lose 10pc of population to Australia
3 November 2010
New Zealand risks losing up to 10 per cent of its current population to Australia in the next 15 years, unless bold action is taken sooner rather than later to arrest the country's decline, relative to its trans-Tasman rival, says the second 2025 Taskforce second report, issued today.
Chaired by former National Party leader and Reserve Bank governor Don Brash, the taskforce says that, far from catching Australian income levels by 2025, New Zealand incomes appear likely to slide relative to Australians.
OECD projections suggested Australians would be earning 42 per cent more than New Zealanders in 15 years, compared with the 35 per cent head-start prevailing today.
"Based on current projections of the income gap and its impact on emigration, a net 412,000 New Zealanders could leave over the next 15 years," the taskforce says.
"That is almost one in every 10 people living in New Zealand today.
"The skills and enterprise of these emigrants would be a huge loss to the economy, especially given that taxpayers would have spent perhaps $30 billion educating and providing medical care for them."
While new migrants might make up the numbers, "they are not a perfect substitute for the rapid loss of so many people born and raised in New Zealand."
more here