Suchergebnisse

AbstractThe Final Report of the Royal Commission into Aged Care Quality and Safety (Commonwealth of Australia 2021) highlighted the challenges in developing a sustainable financing system for aged care in Australia. The report recommended additional funding both in the short term and longer term so as to provide an adequate level of aged care quality for older Australians, including exploring an actuarially based contributory social insurance scheme for aged care. Sustainable financing of aged care requires a balance between government tax‐based financing, individual contributions during working life through an aged care levy, copayments for aged care costs for those receiving aged care and means testing for these copayments. There should be a role for private market insurance and financing to supplement government financed aged care support.

Longevity risk and the modeling of trends and volatility for mortality improvement have attracted increased attention driven by ageing populations around the world and the expected financial implications. The original Lee-Carter model that was used for longevity risk assessment included a single improvement factor with differential impacts by age. Financial models that allow for risk pricing and risk management have attracted increasing attention along with multiple factor models. This paper investigates trends, including common trends through co-integration, and the factors driving the volatility of mortality using principal components analysis for a number of developed countries including Australia, England, Japan, Norway and USA. The results demonstrate the need for multiple factors for modeling mortality rates across all these countries. The basic structure of the Lee-Carter model cannot adequately model the random variation and the full risk structure of mortality changes. Trends by country are found to be stochastic. Common trends and co-integrating relationships are found across ages highlighting the benefits from modeling mortality rates as a system in a Vector-Autoregressive (VAR) model and capturing long run equilibrium relationships in a Vector Error-Correction Model (VECM) framework.