A study of preventing older poverty by public pension system

我对OECD国家公共基本养老金的比较研究和日本公共基本养老金改革的历史分析，旨在揭示防止老年贫困的机制。结果，经合组织国家构建了四种养老金类型：基本收入养老金、准基本收入养老金、安全网养老金和保险养老金。虽然保险年金很难防止贫困，但日本的公共基础年金就属于这一类。此外，2004年养老金改革大幅降低了福利水平，导致预防老年贫困的作用也随之减弱。

I had made a comparative study about public basic pensions in OECD countries and historical analysis on public basic pension reforms in Japan in order to reveal the mechanism for preventing older poverty. As a result, four pension types were constructed in OECD countries ; basic income pension, quasi-basic income pension, safety net pension, and insurance pension. Although the insurance pension could hardly prevent poverty, the public basic pension of Japan was classified into this category. In addition, the benefits levels were so reduced by 2004 pension reform that the role as preventing older poverty would shrink.