Exploring the ethnic pay gap further
Two recent quantitative studies have explored the
ethnic pay gaps in Aotearoa New Zealand in further
depth – one by the Treasury26 in 2018 and the other
commissioned for this Inquiry by the New Zealand
Work Research Institute27 in 2022. These studies
controlled for individual-level characteristics (such
as age and location), education level and job-related
factors (such as industry, occupation and contract
type) to try and account for the factors that explain
the gaps.
The Treasury study found that educational level
and occupation contributed the most to explaining
pay gaps between Pacific peoples and Pākehā.
These findings were updated with 2021 data by the
New Zealand Work Research Institute. For Pacific
peoples, they found that job-related characteristics
explained just under half of the pay gap compared
to Europeans. Educational attainment was also a
significant contribution to explaining the ethnic pay
gap, especially between Pacific and European women.
It is important to note that educational attainment
may become even more of a factor contributing to
the ethnic pay gap for Pacific peoples in the future.28
The recent Inquiry into School Attendance presented
to Parliament reveals that Pacific school students’
regular school attendance has been on a downward
trend since 2015. COVID-19 interrupted this trend
briefly, with Pacific students attending school at a
slightly higher rate in 2020. However, in 2021, the
rates of attendance for Pacific students declined
again.29 Regular school attendance is foundational
to student achievement, and if this troubling trend
continues, it can be expected to adversely affect the
Pacific Pay Gap.
Additionally, the New Zealand Work Research
Institute found that Pacific peoples were
32
disproportionately located in Auckland where
wages are higher.30 The authors noted that, if the
Pacific population were more dispersed across the
country, the ethnic gap between Pacific peoples and
Europeans would increase.
These authors found that a substantial portion
of the pay gaps experienced by Pacific peoples
was not explained by observable characteristics
such as educational attainment and job-related
characteristics. This unexplained portion was likely
to be attributable to a range of reasons, including
missing data, differences in preferences in the nonwage components of the job, unconscious bias and
discrimination.
Further, discrimination (both structural and
interpersonal) and unconscious bias will also affect
what is considered the explained portion of pay gaps,
as well as the parts that are not explained. Treasury
have previously commented on this second issue:
This means that the ‘explained’ component of
the wage gap is not free from the effects of
discrimination, and discrimination, if it exists, is
likely to be contributing to both the ‘explained’
and ‘unexplained’ portions of the earnings gap.31
Education provides a good example of where the
pay gap may be impacted by both explained and
unexplained factors. While education level is used
to help explain part of the pay gap, discrimination
may well have played a role in the level of education
a person attains. An example of this is in low
expectations of teachers shaping educational
achievement for Pacific students. There is a
significant body of research that shows the impact of
structural discrimination in education, including the
Commission’s overview in our report A Fair Go for All? 32
26
New Zealand Treasury. The New Zealand Pacific Economy. Wellington: New Zealand Treasury, 2018. https://www.beehive.
govt.nz/sites/default/files/2018-11/NZ%20Pacific%20Economy%20Report%2013%20November%202018_0.pdf.
27
Cochrane, Bill, and Gail Pacheco. Empirical Analysis of Pacific, Māori and Ethnic Pay Gaps in New Zealand. Auckland: New
Zealand Work Research Institute, 2022. https://secureservercdn.net/45.40.152.202/76v.71b.myftpupload.com/wp-content/
uploads/2022/07/PPG-Inquiry-Empirical-analysis-of-Pacific-Maori-and-ethnic-pay-gaps-in-New-Zealand.pdf.
28
Education and Workforce Committee. Inquiry into School Attendance: Report of the Education and Workforce Committee. 2022.
https://www.parliament.nz/resource/en-NZ/SCR_121164/92dac6fd9a9ea51f7aff84e523dfaaeefd6ca168.
29
Education and Workforce Committee, Inquiry into School Attendance, 12.
30
Cochrane and Pacheco, Empirical Analysis of Pacific, Māori and Ethnic Pay Gaps in New Zealand, 9.
31
New Zealand Treasury. Statistical Analysis of Ethnic Wage Gaps in New Zealand. Wellington: New Zealand Treasury, 2018, 16.
https://www.treasury.govt.nz/sites/default/files/2018-08/ap18-03.pdf.
32
New Zealand Human Rights Commission. A Fair Go for All? Rite Tahi Tātou Katoa? Addressing Structural Discrimination in
Public Services. Auckland: New Zealand Human Rights Commission, 2013. https://www.hrc.co.nz/files/2914/2409/4608/HRCStructural-Report_final_webV1.pdf.