# Global demographic shifts and pension sustainability

> Live situation record from CLSTR: https://clstr.news/situations/global-demographic-shifts-and-pension-sustainability
> Updated: 2026-10-25T08:45:05.000Z. Sources: 7. Developments: 2.

Global demographic trends are creating significant fiscal and structural challenges for economies and social safety nets. Projections indicate that the European Union population may peak in 2029 before entering a long-term decline, driven by rapid societal aging. In G7 economies, the ratio of working-age individuals to those over 65 is expected to drop from three-to-one to two-to-one by 2050, increasing government spending on healthcare and pensions while limiting productive capacity.

This demographic shift is contributing to a crisis in global pension systems. Data from the 2026 Marsh CFA Institute Global Pension Index shows that 43 of the 55 systems surveyed have fertility rates below the replacement level of 2.1 children per woman. Combined with increased longevity—with life expectancy at age 65 rising by over 50% since 1950 in developed regions—pension funds face mounting liabilities. Experts have described the financial burden on future generations as a ‘ticking time bomb,’ noting that defined-benefit schemes face rising liabilities while defined-contribution members risk outliving their savings.

## Claims

- 43 of the 55 pension systems in the 2026 Marsh CFA Institute Global Pension Index have fertility rates below 2.1. (corroborated by 6 sources)
- Life expectancy at age 65 in developed regions has increased by 50.9% since 1950. (corroborated by 6 sources)
- Sebastien Betermier described the pension funding challenge as a ‘ticking time bomb’. (corroborated by 6 sources)
- 23 pension systems have fertility rates below 1.5. (corroborated by 6 sources)
- Marsh advocates for flexible retirement ages instead of a single fixed age. (single source)

## Timeline

### 2026-10-25: Global pension systems face demographic crisis, report warns

The 2026 Marsh CFA Institute Global Pension Index warns that low fertility rates and increased longevity are creating a demographic crisis for global pension systems.

7 sources. https://clstr.news/cluster/global-pension-systems-face-demographic-and-sustainability-challenges

### 2026-10-05: Moody’s warns of EU population peak in 2029 and long-term decline

Moody’s warns that the EU population will peak in 2029, leading to long-term decline. Aging populations threaten G7 economies with rising pension costs and shrinking labor forces.

2 sources. https://clstr.news/cluster/moodys-warns-of-eu-population-peak-in-2029-and-long-term-decline

---
Cite as: Global demographic shifts and pension sustainability. CLSTR, https://clstr.news/situations/global-demographic-shifts-and-pension-sustainability