Abstract
Japan has a complex social security system. This article discusses the demographic and economic situation in Japan as background for understanding the setting in which the social security system functions. Japan has a three-pillar system for retirement income. The first pillar is the social security pension plan; the second pillar is the voluntary occupational pension plan; and the third pillar is personal savings, including the personal pension plan. The most important part of the retirement income system is the social security pension plan, which paid benefits accounting for 64% of the total income of elderly households in 1998. The five Employees' Pension Plans are established on a compulsory social insurance basis. Most large Japanese employers have a mandatory retirement age. Over 90% of all employees, including public sector ones, must retire from their career jobs at age 60.