Introduction
This research note aims to explore
the factors that contribute / explain
the Māori and ethnic pay gaps in New
Zealand. The gaps between the average
(as well as median) hourly wages for the
European workforce relative to Māori
and Pacific workers is substantial.
A statistical analysis by Treasury in 2018 also
showed that the ratio in average hourly wages
(based on published survey estimates by Stats
NZ) for both ethnic groups, relative to Europeans,
had stayed at a similar level for the last decade,
as stated on p.1 “there has been movement
from year to year but no consistent upward or
downward trend” (Treasury, 2018).
The substantive and persistent ethnic pay gaps
warrant empirical analysis, as it is important to
control for differences in characteristics. These
include individual, household, occupation,
industry and other job characteristics of the
individuals. The analysis within this note has
been undertaken as an input to the Pacific Pay
Gap Inquiry that is being conducted by the
Human Rights Commission in New Zealand. Their
motivation for the Inquiry is to better understand
why the Pacific Pay Gap exists and how it can
be closed. In addition to this research input,
the Human Rights Commission is also collecting
evidence via surveys, submissions, workshops and
Talanoa.
This study is a short note wholly focussing on the
empirical analysis of Māori and ethnic pay gaps in
New Zealand. We therefore do not delve into the
wider employment picture for these population
groups, such as the mechanisms by which various
groups acquire labour market attributes (such as
educational attainment), the functioning of labour
market institutions, or the nature of potential
discriminatory practices. A useful starting point
for building a wider picture of Pacific peoples in
New Zealand is research undertaken on a range
of aspects of this population by the Ministry of
Pacific Peoples (2021).
This analysis makes use of unit record Income
Survey data from Stats NZ to estimate the ethnic
pay gaps for three groups relative to Europeans:
Māori; Pacific and Asian. We employ the
Oaxaca-Blinder decomposition technique which
apportions each of these gaps into two parts:
the explained and unexplained. Simply put, the
explained reflects differences in the observable
characteristics of the ethnic groups; while the
unexplained reflects differences in returns.
The format of the remainder of this note is as
follows: Section 2 describes the data, key variables
and descriptives of our sample; while Section
3 details the method and results. The results
include ethnic comparisons for the aggregate
survey population, as well as ethnic differences by
gender.
Empirical analysis of Pacific, Māori and ethnic pay gaps in New Zealand
2