# Productivity Commission — Case Study: Aged Residential Care (Immigration Inquiry, 2022)

Document ID: doc-0077  
Publisher: New Zealand Productivity Commission; archived by the Treasury  
Catalogue publication date: 2022-05-28  
Physical PDF pages: 22  
Original capture/access label: June 2026  
Source and original reviewed: 9 October 2026

Original local PDF: [Retained original](/pdfs/2024%20-%20Treasury%20-%20Case%20Study%20Aged%20Residential%20Care.pdf)

Primary publisher source: [Document or publication listing](https://www.treasury.govt.nz/publications/pcrp/case-study-aged-residential-care-immigration-settings-inquiry)

## What the document contributes

Elizabeth Knopf’s March 2022 desk review examines aged residential care as an input to the Productivity Commission’s immigration inquiry. It describes the shift toward more complex care, provider scale, nurses and caregivers operating in different labour markets, migrant recruitment and retention, and the effects of funding and pay structures. Its historical evidence shows why workforce availability affects care capacity and hospital demand. Treasury’s archive dates issue to 28 May 2022 and identifies the 2024 website migration; this is not a 2024 Treasury policy statement or a source of current visa, wage or staffing rules.

## Substantive findings

- The 22-page report is by Elizabeth Knopf, with a March 2022 cover. Treasury’s archive lists a signed date of 1 March 2022, issue date 28 May 2022 and May 2024 migration from the disestablished Productivity Commission; its status is Not Current.
- The author describes a desk review of available information, with figures and tables taken from identified original sources. Findings express the author’s views, rather than an official Treasury position (p. 1).
- The review describes a shift toward older entrants and more complex hospital and dementia care, making skill mix and nursing capacity important alongside bed supply (pp. 2–4).
- Using 2017/18 figures from the EY review, it describes about $1.9 billion of annual ARC spending: $1.1 billion from DHBs and $0.8 billion from residents, excluding extra charges. These are dated inputs, not current expenditure (p. 2).
- It distinguishes tertiary-qualified, regulated registered nurses from caregivers/kaiāwhina recruited from a wider labour market, and reports that workforce shortages and competing health-sector opportunities affect recruitment and retention (pp. 5–6, 12–13).
- Around 40% of the critical ARC workforce was on visas in the cited 2019 industry evidence. Visa-based survey data and linked immigration/IRD recent-migrant data use different definitions and cannot be directly compared (pp. 7–10, 17).
- The author concludes that care labour remains a critical input and supports hospital productivity by providing care that would otherwise need hospitals, community services or family support. Historical forecasts do not establish present staffing capacity or immigration policy (pp. 17–18).

## Identity, dates and provenance

The local filename’s 2024 Treasury label reflects archive hosting rather than authorship or publication. The cover identifies Knopf, March 2022 and the Productivity Commission immigration inquiry. Treasury supplies separate signed and issue dates and states that migration occurred in May 2024. The catalogue uses the issue date and keeps the filename unchanged. PDF creation metadata in June 2022 is not treated as publication.

The October 2026 review enriches the catalogue and this editorial companion; it does not replace the original publication date or the June 2026 access/capture label. The original PDF and filename remain unchanged.

## Where to check the original

Page 1: author, date and desk-review disclaimer. Pages 2–5: sector, funding, demand and ownership. Pages 5–11: workforce, migration, wages and survey definitions. Pages 12–17: local recruitment, immigration and summary. Page 18: productivity conclusion. Pages 19–22: source-derived appendices.

## Evidence limits and use

This is an external synthesis of earlier industry surveys and administrative evidence, not a new representative workforce survey or Treasury recommendation. Migrant definitions differ: on-visa workers include long-term residents, while linked immigration/IRD data distinguishes recent arrivals. Historical shortage, wage, occupancy and entry/stay figures have specific source years. Nursing-registration pathways, visas, DHBs, pay-equity scales and contracts have changed since the review. Consult current primary agencies for operational decisions; source-derived tables should be attributed to their original studies.

## Additional primary sources

- [Archived publisher PDF](https://www.treasury.govt.nz/sites/default/files/2024-05/pc-inq-is-case-study-aged-residential-care.pdf)