Money · Credit · New Zealand · Part 9
Could New Zealand design better public-investment institutions?
If New Zealand wants more long-term productive investment, the answer cannot simply be “spend more” or “borrow more”. Institutional design matters.
Over the first eight parts of this series, I have tried to separate several things that are too often blurred together.
Money is not the same thing as credit.
Commercial-bank lending is not the same thing as government spending.
Government borrowing is not the same thing as central-bank money creation.
Funding is not the same thing as financing.
And financial capacity is not the same thing as physical capacity.
That brings us to a different question.
If New Zealand wants more investment in productive assets, should every decision have to move through the ordinary annual Budget process — or is there a role for specialist public-investment institutions?
New Zealand already uses specialist institutions
This is not an entirely hypothetical idea.
New Zealand already has Crown entities and companies with specialised investment, financing and infrastructure functions.
National Infrastructure Funding and Financing Limited — NIFFCo — is a Schedule 4A company under the Public Finance Act. It evolved from Crown Fibre Holdings and later Crown Infrastructure Partners.
Today, Treasury says NIFFCo administers infrastructure funds, partners with agencies on projects involving private finance, and connects investors with Crown investment opportunities.
Treasury — National Infrastructure Funding and Financing Limited ↗
The Infrastructure Commission — Te Waihanga — has a different role: independent infrastructure strategy and advice rather than financing individual projects.
Those distinctions are useful.
Planning, funding, financing, delivery and regulation do not necessarily belong inside the same institution.
New Zealand has also learned what can go wrong
New Zealand Green Investment Finance was established in 2019 to accelerate low-emissions investment.
It was designed as a specialised Crown investment company.
But in 2026 the Government directed NZGIF to enter a managed wind-down, and Treasury has taken over publication of its corporate material.
Treasury — New Zealand Green Investment Finance ↗
The lesson is not that public investment institutions are inherently bad.
It is that specialist institutions do not escape ordinary problems of governance, mandate, execution, political change or investment performance.
Creating an institution is not the same thing as creating capability.
What is a public investment bank or development institution?
At its simplest, it is an institution with a public mandate to finance or support investment that serves defined economic or public-policy purposes.
It may:
make loans,
provide guarantees,
co-invest with private capital,
take equity positions,
finance infrastructure,
support technology and innovation,
or help reduce risks that prevent otherwise viable projects from attracting finance.
But there is an important distinction.
A serious development institution is not supposed to be a pot of cheap political money.
It is supposed to be a financial institution with a public mandate and professional risk governance.
KfW: a public promotional bank
Germany's KfW is one of the best-known examples.
KfW is a public-law institution and describes itself as the promotional bank of the Federal Republic of Germany.
Its governance structure is established in law, and it operates under Germany's Public Corporate Governance Code.
KfW — Corporate Governance Report 2025 ↗
KfW supports domestic investment, innovation, energy transition, housing, infrastructure, small and medium-sized enterprises and international development through different parts of the group.
The point is not that New Zealand should copy KfW.
Germany has a different economy, legal system, capital market and institutional history.
The useful lesson is structural:
the institution has a defined public mandate, professional banking functions, statutory governance and transparent reporting.
The European Investment Bank: scale through shared capital
The European Investment Bank offers another model.
The EIB is owned by the 27 Member States of the European Union.
It is both a public institution and a bank, operating under its own Statute and EU treaty framework.
European Investment Bank — Shareholders ↗
In 2025, the EIB itself signed about €86 billion of financing, while the wider EIB Group reached €100 billion of new financing.
Its activity spans energy, technology, infrastructure, housing, climate, social investment and other strategic areas.
Again, scale is not the lesson for New Zealand.
The lesson is that a public institution can mobilise large amounts of capital while still operating within banking, governance, audit and risk frameworks.
What problem would a New Zealand institution actually solve?
This is the first question we should ask before creating anything.
A new institution should exist only if there is a clearly identified gap that existing agencies, banks and capital markets are not solving efficiently.
Possible gaps could include:
long-duration infrastructure finance,
co-investment in strategic productive assets,
financing for viable firms without conventional property collateral,
technology commercialisation,
energy and network investment,
regional infrastructure,
or projects whose public benefits are larger than the private financial return.
But each of those problems could require a different institution or tool.
Never begin with “we need a bank”. Begin with “what financing problem are we trying to solve?”
Additionality should be the first rule
A public investment institution should not compete with private finance simply because it can obtain capital more cheaply.
It should be able to explain what it adds.
For example:
Is the project too long-dated for ordinary commercial lending?
Is there a coordination problem among multiple investors?
Is there a temporary market failure?
Does the project create public benefits that private investors cannot capture?
Can a guarantee unlock private capital without the Crown funding the whole project?
Can co-investment reduce risk enough to make a viable project bankable?
If ordinary private finance can fund the project efficiently on reasonable terms, the public institution should have a strong reason for intervening.
Public purpose does not cancel credit risk
This is where many development-finance ideas become dangerous.
A project can be strategically desirable and still be a bad loan.
A renewable-energy project can fail.
A technology company can fail.
An infrastructure project can run over budget.
A regional development project can generate lower demand than forecast.
So a specialist public institution still needs professional underwriting.
That means:
cash-flow analysis,
security where appropriate,
portfolio limits,
concentration limits,
stress testing,
credit committees,
independent risk functions,
and provisions for losses.
If a project cannot survive serious credit analysis, calling it “strategic” does not make the risk disappear.
Political direction and lending decisions must be separated
Government should be able to set the mandate.
For example, Parliament could decide that an institution exists to support infrastructure, productive business investment, energy security or technology commercialisation.
But Ministers should not be deciding which individual company receives a loan.
That is where political credit systems become vulnerable to favouritism and poor risk discipline.
A robust model would separate:
public policy: Parliament and government define the purpose.
institutional strategy: the board translates that mandate into measurable investment criteria.
individual transactions: professional investment and credit teams make decisions under approved risk policy.
oversight: auditors, Parliament and the public can see whether the institution is performing against its mandate.
The subsidy should be visible
If government wants to support an activity on non-commercial terms, that support should be transparent.
Suppose a project would require a 7% return commercially, but the public policy case justifies financing at 3%.
The difference is not magic.
Somebody is bearing that cost or risk.
A well-designed system should identify it explicitly rather than burying it inside an institution's balance sheet.
This is critical for accountability.
Otherwise losses can accumulate for years before taxpayers understand the real cost of the policy.
Do not use an institution to hide Crown debt
Moving borrowing into a Crown company does not necessarily remove the economic risk from the Crown.
If the Government ultimately guarantees, recapitalises or stands behind an institution, that contingent exposure matters even if the debt is legally held somewhere else.
Treasury's current infrastructure framework places increasing emphasis on investor assurance, transparency and risk allocation for exactly this reason.
Treasury — Strengthening Investor Assurance 2026 ↗
A public-investment institution should therefore improve capital allocation — not merely accounting presentation.
Co-investment can be more powerful than replacing private capital
One of the strongest models may be partnership rather than substitution.
A public institution can invest alongside:
banks,
KiwiSaver funds,
pension and institutional capital,
iwi and Māori investment entities,
infrastructure funds,
international investors,
and private companies.
That can bring public policy objectives together with private due diligence and investment discipline.
It also reduces the amount of Crown capital needed for each dollar of total investment.
But the public institution still has to prove why its involvement is necessary and what risk it is taking.
New Zealand's institutional landscape is already changing
In December 2024, Crown Infrastructure Partners was repurposed as NIFFCo as part of wider infrastructure-system reform.
Treasury says NIFFCo is intended to partner on private-finance projects and connect investors with Crown opportunities, while Te Waihanga remains the independent long-term infrastructure adviser.
Treasury — Infrastructure System Reform ↗
In 2026, the Government has also strengthened investor-assurance arrangements and responded to the National Infrastructure Plan.
Treasury — Government Response to the National Infrastructure Plan 2026 ↗
So New Zealand is already moving toward more specialised infrastructure financing and investment institutions.
The question is whether that architecture should eventually extend further into productive national investment.
What would good design look like?
If New Zealand ever created a broader public-investment institution, I would want at least these safeguards:
A narrow statutory mandate. It should be clear what the institution exists to finance — and what it is prohibited from financing.
Independent governance. Directors should be selected for finance, investment, risk, infrastructure and governance capability rather than political loyalty.
Professional credit decisions. Ministers set policy, not individual loans.
Explicit additionality. Every transaction should explain why public involvement is necessary.
Portfolio risk limits. Sector, borrower, geography and instrument concentration should be controlled.
Transparent subsidy. Any concessionary element should be reported separately from commercial performance.
Co-investment where possible. Public capital should mobilise other capital rather than automatically replace it.
Independent audit and parliamentary scrutiny.
Published outcomes. Not only dollars invested, but infrastructure delivered, firms expanded, capacity created, emissions reduced, exports increased or productivity improved.
Periodic mandate review. If the market failure disappears, the institution should change or close.
Closing an institution should be possible
This point matters more than it sounds.
Public bodies have a tendency to outlive the problem they were created to solve.
NZGIF's managed wind-down is a reminder that institutional architecture should include a way to stop, restructure or disestablish an entity when its mandate no longer fits.
A development institution should not become permanent simply because it already exists.
What should we not build?
We should not build:
a political lending office,
a mechanism for financing weak projects off balance sheet,
a source of unlimited cheap credit,
a substitute for proper project appraisal,
or an institution whose losses are socialised while successes are impossible to measure.
That would make the system weaker, not stronger.
My conclusion
New Zealand may have room for stronger specialist public-investment institutions.
But the case has to be earned.
We should identify a real financing gap first.
Then choose the smallest institutional tool capable of solving it.
And if a new institution is justified, its governance should be more disciplined than ordinary political spending — not less.
Public capital should be strategic, professionally governed, transparent and measurable.
The international examples are useful because they show that public-purpose finance can operate at scale.
New Zealand's own experience is equally useful because it reminds us that institutional form is not enough.
Mandate, governance, risk and execution are what determine whether public investment becomes productive capital or simply another liability.
Next
That brings us to the final design question before we start developing our own framework:
What would a New Zealand national investment institution actually need to look like?
Part 10 will turn the principles into architecture: mandate, ownership, capital structure, governance, lending powers, investment limits, accountability, inflation safeguards and the relationship with Treasury, Parliament, the Reserve Bank and private capital.
Primary sources
Treasury — National Infrastructure Funding and Financing Limited ↗
Treasury — New Zealand Green Investment Finance ↗
KfW — Corporate Governance Report 2025 ↗
European Investment Bank — Governance and structure ↗