Longevity risk, the possibility of people living longer than predicted, poses a significant challenge to pension funds, life insurers, and even governments. An increase in life expectancy necessitates long-term financial planning. To manage longevity risk, tools such as risk transfer arrangements and recurring evaluations of demographic tendencies are frequently used.
The rise in average life expectancy is putting pressure on pension plans and insurance providers, even a slight change in life expectancy can have serious implications for their solvency. Currently, it remains difficult to find accurate measures of longevity risk, primarily because the impact of medical advancements on life expectancy hasn't been fully quantified. Additionally, the population aged 65 or above – the common retirement age – is escalating, projected to grow from around 56 million in 2020 to 95 million by 2060.
Governments are strained by longevity risk as they need to deliver on their commitments to retired citizens through pensions and healthcare, often supported by diminishing tax revenues. Similarly, Corporate entities that fund retiree benefits must deal with longevity risk associated with their retired workforce. Individuals, particularly those who cannot fully rely on government or corporate support, must also navigate the challenges posed by their personal longevity risk.
Various strategies can be employed to transfer longevity risk. A straightforward method is a single premium immediate annuity (SPIA), where a premium is paid to an insurer, thus transferring both asset and liability risk, although this can potentially introduce material credit risk exposure.
Alternatively, the reinsurance model allows for the elimination of longevity risk alone, whilst retaining the underlying assets. Here, the premium is spread over an expected 50 or 60-year liability term, providing alignment between premiums and claims, and transitioning from uncertain cash flows to certain ones.
Two primary factors come into play while transferring longevity risk for a pension plan or insurer. One is the current mortality rates, varying substantially across different health and socioeconomic groups, while the other is the trajectory of longevity trend risk, applicable systematically with an aging population.
Transferring exposure to increasing mortality, for instance via certain life insurance policy portfolios, can help offset systematic mortality trend risk. One reason for ceding risk is the uncertainty surrounding longevity trend risk due to its systematic nature.
The longevity risk illustrates the mounting financial stress on pension funds and insurers as life expectancy increases. This effect is heightened by an aging population, pressuring both governments and employers. To handle these liabilities, organizations may turn to risk-transfer mechanisms like immediate annuities or reinsurance, supplemented by careful evaluation of mortality and longevity trends.