Differences in life expectancy between high and low socioeconomic groups are often large and have widened recently in many countries. Such longevity gaps affect the actuarial fairness and progressivity of public pension systems. However, behavioral responses to longevity and policy complicate...

China?s pension system is in need of comprehensive reform in that it is fragmented in its coverage and significantly under-funded. Attempts to improve the coverage will likely exacerbate the financial strains. Thus it is urgent to improve the financial sustainability of the system and one policy...