Join us this week on the New Zealand Initiative podcast! Our host, Dr Eric Crampton chats with Professor Rhema Vaithianathan from Auckland University of Technology. Rhema gives us a peek into her pioneering work on data-tools, designed with a human touch to better serve communities.

In this fascinating chat, they delve into Rhema's trailblazing project, the Allegheny Family Screening Tool. This unique decision-aid tool is a global first, introduced in 2016 to support child welfare hotline screening. The duo also touch on the equally impressive Allegheny Housing Assessment tool, another innovative machine-learning tool used since 2020 for prioritising housing within the homelessness system.

Rhema reveals the power of predictive risk modelling in the US child protection system, where her team used administrative data to help improve outcomes for children. Listen to how this model uses past case data to guide operators in their decisions regarding potential abuse cases.

In the US, this approach worked to substantially reduce child hospitalisation. It could be done in New Zealand as well. In fact, the work started here. But New Zealand’s politics and public service has a very difficult time with new approaches. American localism means that one innovative county can try it out, and demonstrate the benefits to others.

All this and more in our enlightening podcast. Stay tuned for Part Two, where the conversation on AI and predictive models in child protection systems, and on encouraging public sector innovation more broadly, continues!

Podcast: Data analytics for social impact (part one)

In this episode, Oliver talks to Dr Prabani Wood about her research note "Better health through better data", which examines how New Zealand's fragmented health data systems prevent policymakers from knowing whether their decisions actually improve health outcomes.

They discuss Dr Wood's recommendation for a Canadian-style primary care data network that would enable practitioners to improve their performance while giving policymakers the evidence they need to make better funding and policy decisions.

Read our research note "Better health through better data" here: https://www.nzinitiative.org.nz/better-health-through-better-data/

How better data could fix New Zealand's struggling health system

In this episode, Michael talks to Sir Ian Taylor, founder of Animation Research, about what schools should prioritise in a rapidly changing world. The conversation explores whether traditional literacy still matters when machines can read, and whether curiosity-driven learning or knowledge-rich curricula better equip students for critical thinking in an unpredictable future.

Sir Ian Taylor on literacy, AI and what schools should teach

The opening episode traces the intellectual and personal journey that gave birth to the idea of "Competitive Urban Land Markets" (CLM). It follows Chris Parker’s path from his early attempt at NZIER to broaden traditional cost–benefit models so they could capture the transformative effects of infrastructure investment, to his move into Auckland Council as Chief Economist, where he began to see high land prices not as signs of prosperity but as symptoms of monopoly and institutional failure. 

The conversation explores how Parker’s challenge to the “compact city” orthodoxy led to professional isolation, the coining of the term CLM to communicate publicly without triggering entrenched interests in rising property values, and the emergence of a small, dissident circle of urban economists that quietly germinated a new paradigm. Later, at the invitation of The New Zealand Treasury, Parker joined central government to help redesign the national urban planning system. 

The CLM framing marked a decisive turning point, from confusion to conceptual clarity, about the real cause of unaffordability and, crucially, how to chart a new pathway out of it. What began as a local heresy would become a world-leading insight: a framework that leapt ahead of state-of-the-art academic thinking and is now shaping global urban policy. The episode culminates in the seminal Treasury “chew session” with then-Finance Minister Rt Hon Sir Bill English, who, grasping the paradigm shift, declared that “clarity is now emerging from the mists”—the moment New Zealand’s housing debate found a new compass.

Related links:

Read the supporting advice for the famous Treasury "chew session" with Rt Hon Sir Bill English here: https://www.treasury.govt.nz/sites/default/files/2019-01/oia-20180476.pdf

Housing Affordability: NZ at the Global Policy Frontier (Part 1) - Clarity Emerging from the Mists

In this episode, Oliver talks to James Kierstead and Damien Grant about James's departure from New Zealand after 12 years, reflecting on his journey from academia to policy research and his observations of New Zealand's cultural and political shifts since 2013. They discuss the challenges facing New Zealand universities, including grade inflation and administrative bloat, alongside broader themes of democracy, academic freedom, and the tension between New Zealand's liberal traditions and parochial tendencies.

Universities, democracy and cultural shifts: A farewell to Dr James Kierstead

In this episode, Eric talks to Oliver about a major loophole in New Zealand's tax system that allows some companies to accumulate PAYE and GST debts, stop filing, and effectively walk away — contributing to almost $7 billion in unpaid corporate taxes. 

They discuss Oliver's new research note, "Responsibility before ruin: A pre-emptive fix for NZ's phoenix problem", which examines how Germany prevents such debts from building up through automatic insolvency triggers. Oliver explains how a New Zealand-adapted version — requiring directors to act within a set timeframe after missing tax payments — could stop phoenix behaviour and reduce the $700 million in corporate taxes written off each year.

Read Oliver's research note here: https://www.nzinitiative.org.nz/responsibility-before-ruin-a-pre-emptive-fix-for-nzs-phoenix-problem/

How New Zealand ends up writing off $700 million in corporate taxes every year

This episode traces how Competitive Urban Land Markets (CLM) made the leap from dissident economic insight to the organising principle of New Zealand's housing reform agenda. Hon Phil Twyford reflects on his time as an Opposition MP, where he absorbed CLM's logic, underwent an intellectual shift inside Labour, and worked with a small circle of economists to translate competition and abundance into a language government could act upon.

Once in Cabinet, Twyford and aligned thinkers became the policy entrepreneurs who embedded CLM in the Urban Growth Agenda (UGA). For officials trained in planning orthodoxy, this proved a conceptual shock. Ministers often found themselves teaching the system—literally sketching the framework on whiteboards—as economic reasoning clashed with established planning culture.

The episode revisits the structural wins that followed: wins Twyford now reflects on as the most meaningful work of his ministerial career. A small policy network, spearheaded by Twyford's political courage, pressed ahead of global academic thinking to articulate a practical blueprint for restoring housing affordability. This work helped position New Zealand at the frontier of global housing policy.

What emerges is a portrait of policy entrepreneurship: an emotional and political journey where leadership, economic clarity, and persistence pushed the boundaries of what a small country can achieve. By the close, the broader arc comes into view—including the cross-party consensus highlighted by Sir Bill English—showing how a once-heretical idea became a bipartisan reform movement.

Related links:

• Watch the Sholly Angel’s Making Room for Urban Expansion video here: https://www.youtube.com/watch?v=wQkuoPFq3PM

• To read the reports by the Urban Land Markets Group visit this link the first paper (“A New Paradigm for Urban Planning”): https://www.auckland.ac.nz/assets/business/about/our-research/research-institutes-and-centres/Economic-Policy-Centre--EPC-/USEPP002.pdf

Visit this link for the second paper (“How We Supply Infrastructure Makes Housing Unaffordable: Introducing a New Approach to Funding and Financing our Cities”): https://www.auckland.ac.nz/assets/business/about/our-research/research-institutes-and-centres/Economic-Policy-Centre--EPC-/USEPP003.pdf

 

Housing Affordability: NZ at the Global Policy Frontier (Part 2) - From Heresy to Reform

In this episode, Eric, Nick and Benno talk about the Government's proposal to abolish regional councillors while retaining regional councils, shifting governance to new Combined Territories Boards made up of local mayors. 

They explore how this reform creates space for mayors to rethink regional governance through a function-by-function approach, potentially establishing purpose-built agencies for issues like water catchments and transport that cross council boundaries.

How mayors could replace regional councillors

In this episode, Oliver, Nick and Bryce talk about the Fast Track Approvals Amendment Bill, focusing on the use of Henry VIII clauses that allow ministers to amend legislation without full parliamentary scrutiny. 

The discussion examines why these powers have typically been used only in genuine emergencies, how their application in planning reform raises constitutional questions, and why the Initiative recommends clearer limits and stronger sunset provisions to protect democratic processes.

Fast track reform and parliamentary oversight

In this episode, Oliver and Michael reflect on a packed 2025 that brought major policy wins in education, housing, and regulation, while looking ahead to the bigger picture challenges shaping 2026.

They cover everything from the Initiative’s Dutch delegation and Prof Barbara Oakley’s visit, to the dramatic early gains in literacy and numeracy under Minister Erica Stanford, the new Resource Management Act, and the work ahead on AI, demographic change, and political polarisation.

Podcast: Data analytics for social impact (part one)

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