- Pensions.
- Pay-as-you-go systems.
- Worker-to-retiree ratios.
- Retirement ages.
- Benefit and contribution pressures.
- Healthcare.
- Age-related healthcare spending.
- Long-term care.
- Caregiver shortages.
- Public versus private provision.
- Debt and taxation.
- The tax base.
- Intergenerational transfers.
- Sovereign debt.
- Distribution of fiscal burdens across generations.