31/08/2026
Population ageing is the defining demographic fact of advanced economies. Across the OECD, the old-age dependency ratio reached approximately 31 per cent in 2023 and is projected to approach 52 per cent by 2060, while the share of people aged 65 and over is expected to rise from around 20 per cent to 27.4 per cent by 2050, even as total population declines slightly. As a result, governments face rising pension and health spending while the labour force and tax base that fund these are shrinking.
Ageing is widely expected to weigh on economic growth. The more policy-relevant question is whether the growth effects of ageing are predetermined, or whether their size depends on conditions governments can influence. Our recent piece in Austaxpolicy examines two such factors across 37 OECD countries: fiscal sustainability and labour force participation.
We find that ageing does reduce growth, but the size of that reduction is smaller where fiscal positions are stronger, and labour force participation is higher.
The important policy implication is that the growth effects of ageing are not predetermined. Two factors that governments can influence — fiscal health and the share of people participating in the labour force — materially affect the size of that drag.
Ageing may be unavoidable. How much growth it costs is not.
Read more on Austaxpolicy:
Ageing is widely expected to weigh on economic growth. The question is whether the growth effects of ageing are predetermined, or whether their size depends on conditions governments can influence. Our paper examines two such factors: fiscal sustainability and labour force participation.