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IPS153 Christine B. et al.
data, and models that sit atop such datasets, will be required for demographic
estimation, and projection.
The 2018 Census example is an intermediate step that combines field
enumeration and administrative data. However it does not estimate the
remaining missing data, nor provide uncertainty measures, which are
produced through a coverage survey. We are working towards a model-based
framework that would produce a full census population unit record file, along
with measures of uncertainty.
The direction that the NZ Census will take over the next decade is unclear.
We expect the next census in 2023 will continue the transition towards greater
use of administrative data in support of the full field enumeration census. No
decisions have been made on what will happen after 2023. However,
administrative data will play an increasingly important role in future censuses
and population statistics.

References
1. Bycroft C. (2015) Census transformation in New Zealand: Using
administrative data without a population register. Statistical Journal of
the IAOS: Journal of the International Association for Official Statistics.
2015;31(3):401-411.
2. Choi, H. (2019) Adjusting for linkage errors to analyse coverage of the
administrative population Statistical Journal of the IAOS vol. Pre-press,
no. Pre-press, pp. 1-7, 2019
3. Gibb, S., C. Bycroft, and N. Matheson-Dunning. 2016. Identifying the
New Zealand Resident Population in the Integrated Data Infrastructure
(IDI). Retrieved from www.stats.govt.nz
4. Statistics New Zealand (2012). Transforming the New Zealand Census of
Population and Dwellings: Issues, options, and strategy. Wellington:
Statistics New Zealand, 2012.
5. Statistics New Zealand (2014a). Estimated resident population 2013:
Data sources and methods. Available from www.archive.stats.govt.nz
6. Statistics New Zealand (2014b). Coverage in the 2013 Census based on
the New Zealand 2013 Post-enumeration Survey. Available from
www.archive.stats.govt.nz
7. Statistics New Zealand (2016). 2018 Census strategy. Retrieved from
www.stats.govt.nz
8. Stats NZ (2017a). Experimental population estimates from linked
administrative data: 2017 release. Retrieved from www.stats.govt.nz
9. Stats NZ (2017b). Outcomes versus intentions: Measuring migration
based on travel histories. Retrieved from www.stats.govt.nz
10. Stats NZ (2017c). Defining migrants using travel histories and the '12/16-
month rule'. Retrieved from www.stats.govt.nz

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