A brief guide to producing a national population projection

Abstract

Background  There are surprisingly few resources available which offer an introductory guide to preparing a national population projection using a cohort-component model. Many demography textbooks cover projections quite briefly, and many academic papers on projections focus on advanced technical issues.

Aims  The aim of this paper is to provide a short and accessible guide to producing a national-scale population projection using the cohort-component model.

Data and methods  The paper describes the cohort-component model from a population accounting perspective, presents all the necessary projection calculations, and covers the key steps which form part of the projections preparation process – from gathering input data to validating outputs. An accompanying Excel workbook implements the model and contains example projections for Australia.

Conclusions  Calculating a national population projection using a cohort-component model involves fairly simple algebra, but the broader projections preparation process is more complex, and requires careful consideration and judgement.

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Published
2021-05-30
How to Cite
Wilson, T., & Rees, P. (2021). A brief guide to producing a national population projection. Australian Population Studies, 5(1), 77-100. https://doi.org/10.37970/aps.v5i1.84
Section
Introductory Guides