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Institutional Framework

New Zealand is globally recognised for its robust institutional framework. It ranks highly in all of the World Bank's Governance indicators, illustrating its institutional strength, as shown in Chart 3.

Form of Government

New Zealand is a sovereign state with a democratic parliamentary government based on the Westminster system. Its constitutional history dates back to the signing of the Treaty of Waitangi in 1840, between the British Crown and the indigenous Māori people.

The New Zealand Constitution Act 1852 provided for the establishment of a Parliament with an elected House of Representatives. Universal suffrage was introduced in 1893. New Zealand has the British monarch as titular Head of State. The Queen is represented in New Zealand by the Governor-General, appointed by her on the advice of the New Zealand Government.

As in the United Kingdom, constitutional practice in New Zealand is an accumulation of convention, precedent and tradition, and there is no single document that can be termed the New Zealand constitution. The Constitution Act 1986, however, updated, clarified and brought together in one piece of legislation the most important constitutional provisions that had been enacted in various statutes. It provides for a legislative body, an executive and administrative structure and specific protection for the judiciary.

Legislative power is vested in Parliament, a single chambered body designated the House of Representatives. Members are elected for three-year terms through general elections. It currently has 120 members. Eligible residents over 18 years of age may vote in general elections.

The executive government of New Zealand is carried out by the Executive Council. This is a formal body made up of the Cabinet and the Governor-General, who acts on the Cabinet's advice. The Cabinet itself consists of the Prime Minister and his/her Ministers, who must be chosen from among elected Members of Parliament. Each Minister supervises and is responsible for particular areas of government administration. Collectively, the Cabinet is responsible for all decisions of the Government.

Chart 3: Stable Institutional Backdrop

Source: World Bank Worldwide Governance Indicators-2016

Monetary Policy Framework

The Reserve Bank of New Zealand (RBNZ) was established as Central Bank in 1934. The Reserve Bank of New Zealand Act 1989[2] cemented its independence. It is responsible for monetary policy and financial stability.

The focus of monetary policy is to maintain price stability. The Governor of the RBNZ and the Minister of Finance sign a Policy Targets Agreement (PTA) which sets out the specific targets for maintaining price stability, while seeking to avoid unnecessary instability in output, interest rates and the exchange rate.

The PTA signed in November 2017 requires the RBNZ to maintain inflation in the range of 1% to 3% on average over the medium term. More specifically there is a “focus on keeping future average inflation near the 2% target midpoint”.

The RBNZ maintains the ability to intervene in the foreign-exchange market to influence the level of the exchange rate for monetary policy purposes. Such intervention may occur when the exchange rate is deemed exceptional and unjustified by economic fundamentals and when doing so is consistent with the PTA.

The RBNZ is also responsible for promoting the maintenance of a sound and efficient financial system. In May 2013, a Memorandum of Understanding was signed that defined macro-prudential policy and its operating guidelines. Its objective is to increase the resilience of the domestic financial system and counter instability arising from credit, asset price or liquidity shocks.

As a result of a referendum held in conjunction with the 1993 election, New Zealand changed from a “First Past the Post” (FPP) system of electing Members of Parliament to a “Mixed Member Proportional” (MMP) system of proportional representation. Under MMP, the total number of seats each party has in Parliament is proportional to that party's share of the total list vote. This change was put in place for the 1996 election.

The judicial system in New Zealand is based on the British model. By convention and the Constitution Act 1986, the judiciary is independent from the executive.

Chart 4: NZ Official Cash Rate

Source: RBNZ

Fiscal Policy Framework

The Public Finance Act 1989 requires the New Zealand Government to be transparent in both its short- and long-term fiscal objectives and to maintain prudent debt levels. Recent and current Governments have a strong commitment to prudent fiscal management.

The Public Finance Act stipulates the Treasury must publish economic and fiscal forecasts twice a year. These occur at the time of the mid-year Budget (Budget Economic and Fiscal Update - BEFU) and at the end of the calendar year (Half Year Economic and Fiscal Update - HYEFU). The Treasury must also provide a Pre-election Economic and Fiscal Update (PREFU) prior to nationwide elections, which occur at least every three years. The forecasts extend for four years beyond the current fiscal year i.e. “the forecast period”.

Without parliamentary authority, the Government has no authorisation to incur expenses and capital expenditure and spend public money. An Appropriation Act is the means by which Parliament approves expenses and capital expenditure for the Government for the coming year.

This is supplemented by spending that is authorised under Permanent Legislative Authority which continues in effect until revoked by Parliament. The payment of interest on debt is an example of spending authorised under Permanent Legislative Authority.

Fiscal Strategy

The Government formally communicates its fiscal strategy twice a year, typically alongside the Budget and HYEFU. The Government sets out its short-term intentions and long-term objectives with respect to core parameters such as debt, operating expenses, operating revenue, the operating balance and net worth. The Fiscal Strategy Report is released alongside the Budget. The Budget Policy Statement is generally released alongside HYEFU.

The Government's most recent Budget Policy Statement was published in December 2017 and highlights five Budget Responsibility rules underpinning its fiscal strategy. These are to:

  • Deliver a sustainable operating surplus across an economic cycle.
  • Reduce the level of net core Crown debt to 20% of GDP within five years of taking office (the current Government took office in October 2017).
  • Prioritise investments to address the long-term financial and sustainability challenges facing New Zealand.
  • Take a prudent approach to ensure expenditure is phased, controlled and directed to maximise its benefits. The Government will maintain its expenditure to within the recent historical range of spending to GDP ratio.
  • Ensure a progressive taxation system that is fair, balanced and promotes the long-term sustainability and productivity of the economy.

In addition, the Government recognises the importance of maintaining a sustainable NZGB (New Zealand Government Bond) market. The Budget Policy Statement includes a commitment to maintain levels of NZGBs on issue at not less than 20% of GDP over time even if net core Crown debt were to fall below 20% of GDP.

Fiscal Performance

In the year ended 30 June 2015 (2014/15) the Government achieved an operating surplus for the first time since the global financial crisis. In 2016/17 the operating balance before gains and losses was a surplus of NZD 4.1 billion (1.5% of GDP). Surpluses are forecast to be sustained across the forecast period, reaching 2.5% of GDP in 2021/22.

Core Crown expenditure, as a percentage of GDP, was 28.0% in 2016/17 and is expected to remain close to this level over the forecast period.

A core Crown residual cash surplus was achieved in 2016/17. Over the next three years, forecast capital spending is expected to lead to residual cash deficits, before surpluses are restored later in the forecast period.

Net core Crown debt was 21.8% of GDP in 2016/17. This ratio is forecast to rise slightly to 22.2% in 2018/19 before falling to 19.3% in 2021/22.

Securities Law

The Financial Markets Authority Act 2011 establishes the Financial Markets Authority (FMA) as New Zealand's market conduct regulator. The FMA is an independent Crown Entity whose main objective is to promote and facilitate the development of fair, efficient and transparent financial markets. The FMA enforces financial markets legislation, including the Financial Markets Conduct (FMC) Act.

The FMC Act 2013 regulates the offering and trading of investments and the provision of certain financial services. It regulates the operation of securities and derivatives exchanges and trading behaviour on those exchanges. It also provides general prohibitions on misleading and deceptive conduct in financial markets. New Zealand Government Securities are “securities” for the purposes of the FMC Act.

Year Ending 30 June Actual
2019 2020 2021 2022
Real production GDP (annual average % change) 2.7 2.9 3.6 3.0 2.6 2.1
Real GDP per capita (annual average % change) 0.6 0.9 1.7 1.4 1.4 1.1
Unemployment rate (June quarter) 4.8 4.6 4.4 4.2 4.0 4.1
CPI inflation (annual % change, June quarter) 1.7 2.0 1.9 2.1 2.2 2.2
Current account balance (% of GDP) (2.9) (2.1) (2.3) (2.7) (3.3) (3.9)
Fiscal (% of GDP)
Core Crown tax revenue 27.7 27.3 27.5 27.7 28.0 28.3
Core Crown expenses 28.0 28.5 28.6 28.2 28.0 27.6
Total Crown Operating balance before gains and losses 1.5 0.9 0.9 1.6 2.0 2.5
Core Crown residual cash 0.9 (0.9) (1.5) (0.8) 0.1 0.7
Net core Crown debt 21.8 21.7 22.2 21.9 20.8 19.3
Net worth attributable to the Crown 40.5 40.7 40.6 41.4 42.7 44.7

Source: Stats NZ, the Treasury Finalisation dates for forecasts: Economic - 23 November 2017, Fiscal - 27 November 2017

  • [2] In November 2017 the Government announced it will undertake a review of the Reserve Bank of New Zealand Act 1989.

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Last updated: 
Thursday, 1 February 2018