Small Domain Estimation of Census Coverage – A Case Study in Bayesian Analysis of Complex Survey Data

Elleouet Joane S. (), Graham Patrick (), Kondratev Nikolai (), Morgan Abby K. () and Green Rebecca M. ()
Additional contact information
Elleouet Joane S.: Statistical Methods Unit, Stats NZ 8 Willis Street, PO Box 2922, Wellington 6011, New Zealand.
Graham Patrick: Statistical Methods Unit, Stats NZ 8 Willis Street, PO Box 2922, Wellington 6011, New Zealand.
Kondratev Nikolai: Statistical Methods Unit, Stats NZ 8 Willis Street, PO Box 2922, Wellington 6011, New Zealand.
Morgan Abby K.: Statistical Methods Unit, Stats NZ 8 Willis Street, PO Box 2922, Wellington 6011, New Zealand.
Green Rebecca M.: Statistical Methods Unit, Stats NZ 8 Willis Street, PO Box 2922, Wellington 6011, New Zealand.

Journal of Official Statistics, 2022, vol. 38, issue 3, 767-792

Abstract: Many countries conduct a full census survey to report official population statistics. As no census survey ever achieves 100% response rate, a post-enumeration survey (PES) is usually conducted and analysed to assess census coverage and produce official population estimates by geographic area and demographic attributes. Considering the usually small size of PES, direct estimation at the desired level of disaggregation is not feasible. Design-based estimation with sampling weight adjustment is a commonly used method but is difficult to implement when survey nonresponse patterns cannot be fully documented and population benchmarks are not available. We overcome these limitations with a fully model-based Bayesian approach applied to the New Zealand PES. Although theory for the Bayesian treatment of complex surveys has been described, published applications of individual level Bayesian models for complex survey data remain scarce. We provide such an application through a case study of the 2018 census and PES surveys. We implement a multilevel model that accounts for the complex design of PES. We then illustrate how mixed posterior predictive checking and cross-validation can assist with model building and model selection. Finally, we discuss potential methodological improvements to the model and potential solutions to mitigate dependence between the two surveys.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:offsta:v:38:y:2022:i:3:p:767-792:n:1

DOI: 10.2478/jos-2022-0034

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