Exploring Cities through a Population Ageing Matrix: a spatial and temporal analysis of older adult population trends in Perth, Australia

ABSTRACT

In an increasingly urbanised and ageing world the spatial distribution of an older population is a matter of growing scholarly and policy interest. Much of the research on this topic has tended to draw on one of two key measures: structural ageing, or the ratio of older cohorts to the rest of the population, or numeric ageing, which simply counts the number of older people without reference to the rest of the population. This paper argues that, on their own, these measures have limitations, and that considerable value lies in assessing the interplay between numeric and structural ageing measures. The population ageing matrix, a theoretical framework that classifies the demographic dynamics of population ageing across metropolitan areas, is presented and examined through the case study of Perth, Western Australia. The value of the matrix to reveal patterns and trends missed by analyses of single measures is investigated and areas that are experiencing changes in the composition and size of the ageing demographic are identified. The paper also reflects on the implications of these findings for policy and planning.

KEYWORDS:

• Ageing communities
• numeric ageing
• structural ageing
• spatial distribution
• population ageing matrix
• Perth

Acknowledgements

The authors would like to acknowledge the constructive and detailed contributions of the reviewers and thank Valeriá Paül and Clare Mouat for their helpful insights during the development of this research.

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Mariana T. Atkins http://orcid.org/0000-0002-9585-6711

Matthew Tonts http://orcid.org/0000-0002-3086-3793