New Zealand is losing working-age population to Australia. What should the NZ government do to counter this?

GPT-5.5

Answer: New Zealand should counter working-age migration to Australia by making staying and returning economically compelling: higher productivity and wages, cheaper housing, stronger career pathways, targeted retention in critical sectors, and smarter skilled immigration.

I would maintain my previous position, because the other responses largely converge on the same core diagnosis: New Zealand is not losing workers because of weak patriotism or lack of messaging, but because Australia often offers better wages, larger labour markets, stronger career progression, and in many cases a better income-to-housing-cost trade-off. The government should therefore focus on fundamentals rather than trying to discourage mobility. The first priority is lifting after-tax incomes and productivity. That means policies that help firms scale, invest, export, adopt technology, and pay higher wages: stronger R&D incentives, better capital access, faster infrastructure delivery, less regulatory friction for productive investment, and support for high-value sectors such as technology, clean energy, advanced manufacturing, agritech, healthcare innovation, and export services. Housing reform is equally important. If New Zealand continues to combine lower wages with very expensive housing, it will keep pushing younger workers offshore. The government should liberalise zoning, allow more density near jobs and transport, speed up consenting, fund enabling infrastructure, and use tools such as value capture or infrastructure financing so councils are not the bottleneck. Improving housing affordability is effectively a real-wage policy. I also agree with the case for targeted retention where public investment and service risk are greatest. Broad anti-migration schemes would be blunt and probably ineffective, but student-loan write-downs, bonded scholarships, or retention payments for nurses, doctors, teachers, engineers, police, and other shortage roles can be justified when New Zealand taxpayers helped train people and public services are under strain. New Zealand should also treat migration as a two-way system. Some Kiwis will leave, gain skills and savings, and come back later; that churn can be beneficial. The policy goal should be to make New Zealand a place people want to return to, while also attracting skilled migrants through faster qualification recognition, clearer residency pathways, and better settlement support. So I am not changing my view after reading the other models. The strongest answer is still structural and pro-growth: close the wage and housing gap as much as possible, build deeper career opportunities, protect critical services with targeted incentives, and accept that free movement with Australia is a feature to manage rather than a problem to ban.

Gemini 3.1 Pro (changed mind)

Answer: To counter the population drain to Australia, New Zealand must pair its structural housing and productivity reforms with targeted retention policies and dedicated 'return pathways' that attract skilled expatriates back home.

My initial focus was almost entirely on stopping the exodus by tackling housing affordability and the chronic productivity lag. While I still believe these are the most critical structural fixes, GPT-5.5 raised a highly compelling point that shifted my perspective: free movement is a reality, and rather than just trying to prevent departures, New Zealand must also actively court returns. We cannot ignore the cultural and economic reality of the 'Overseas Experience' (OE). Young Kiwis will inevitably cross the Tasman to capitalize on higher wages and broader career ceilings. Therefore, the government's strategy should evolve from merely trying to lock the gates to managing the migration cycle. By establishing formalized 'return pathways'—such as relocation support, seamless recognition of overseas qualifications, and incentives for returning entrepreneurs—New Zealand can repatriate valuable skills and capital. Simultaneously, we must adopt GPT-5.5's suggestion of targeted retention for critical sectors. Offering student-loan relief or retention bonuses for hard-to-staff professions like healthcare and education is a practical, immediate lever to stabilize essential public services while broader economic reforms take root. Ultimately, bringing Kiwis home still requires fixing the fundamentals. If returning expatriates cannot afford a home or find high-productivity jobs, they will stay in Australia. Therefore, coupling these new return and retention strategies with aggressive zoning liberalization and R&D investment provides a complete, realistic blueprint for countering the trans-Tasman brain drain.

Grok 4.20

Answer: The NZ government should focus on pro-growth reforms to boost productivity, wages, and housing affordability while creating high-value jobs, as this aligns with and is reinforced by the other models' analyses.

My previous position emphasized boosting wages, improving housing affordability, and investing in high-value industries to retain working-age Kiwis. After reviewing the responses from GPT-5.5, Gemini 3.1 Pro, and Claude Opus 4.7, I see a strong consensus on these core elements, which validates and refines my stance without requiring a shift. All three models highlight the income and productivity gaps as central drivers, advocating for tax relief, R&D incentives, and sector-specific growth in areas like tech, agritech, and renewables. This matches my call for targeted investments and confirms that economic pull factors must be addressed directly rather than through ineffective patriotic appeals. Housing reform emerges as a universal priority, with detailed suggestions for zoning liberalization, infrastructure funding, and increasing supply to lower living costs. This builds on my earlier argument about reducing financial pressures, showing how unaffordability exacerbates the real wage disparity even when nominal salaries lag. The models also introduce complementary ideas like skills policies, retention bonuses for key professions, leveraging immigration to offset losses, and creating return pathways for expatriates. While valuable, these enhance rather than contradict my framework. Claude Opus 4.7's point about accepting healthy churn and focusing on making New Zealand a place worth returning to particularly resonates as a pragmatic nuance, but it supports maintaining the emphasis on structural reforms over mobility restrictions. Overall, the convergence across models strengthens confidence in data-driven, long-term economic strategies monitored via migration trends, avoiding any need to pivot from the original position.

Claude Opus 4.7 (changed mind)

Answer: New Zealand should focus on closing the productivity and wages gap with Australia through pro-growth economic reforms — particularly housing liberalisation, capital deepening, and trans-Tasman market integration — rather than trying to restrict mobility or match Australia dollar-for-dollar on benefits.

I'm maintaining my position because the other models broadly converge on the same diagnosis I offered — the gap is structural (wages, productivity, housing) and the response must be structural too. None of them presented evidence or framing that would push me to abandon the productivity-and-housing core of my answer. That said, reading the others sharpens two emphases I'd add. GPT-5.5's point about a deliberate "return pathway" for Kiwi expatriates is genuinely useful and something I underweighted: the diaspora is large, and many leavers return in their 30s with skills and capital if the on-ramp (qualification recognition, relocation support, founder incentives) is smooth. This is cheap policy with high leverage, and I'd now fold it explicitly into my package. Gemini 3.1 Pro's framing about shifting incentives "away from unproductive property speculation" also reinforces a point I'd make more strongly: NZ's tax system has historically rewarded leveraged housing over productive investment, which simultaneously worsens the housing crisis and starves firms of capital. Capital gains treatment, debt-deductibility settings, and depreciation rules should be aligned to push savings into productive enterprise. Where I still differ in emphasis from Grok 4.20 and Gemini: I'm sceptical that sectoral tax breaks for "tech, renewables, agritech" do much on their own. Picking winners has a poor track record in small economies; horizontal reforms (R&D credits, scale via SEM with Australia, deeper capital markets, planning liberalisation) tend to outperform targeted industrial policy. So my position stands, with an added expatriate-return component credited to GPT-5.5.

Final Summary

The AI Roundtable unanimously concluded that New Zealand cannot "guilt-trip" workers into staying and must instead treat migration as a rational economic price signal. GPT-5.5 successfully convinced both Gemini 3.1 Pro and Claude Opus 4.7 to pivot toward "return pathways," focusing on attracting skilled expatriates back home rather than just preventing their departure. Grok 4.20 joined the consensus, emphasizing that radical housing liberalization is the most effective way to give Kiwis an immediate real-wage increase.

All 4 models agreed