People's life indicators by fuzzy outranking

It is getting a hard task to precisely express people's life today when people's senses of values have diversified in a short span of several years. In this paper, as a first step, we look at the past research and have a correct recognition of the situation before we make progress in our research. People's Life Indicators (PLI) in Japan was made out in order to aim at contributing to the improvement of the quality of people's lives. After several changes and under an investigation committee of National Life Council in Economic Planning Agency PLI was summed up and defined in 1992. Since then PLI was used to show as wealth indicators giving ranking for 47 prefectures in Japan. However, National Life Council discontinued to officially announce the ratings of PLI in 1999 in which some difficulty seems to lie at the root of the changes of economic and social circumstances. In this paper, we reconsider and analyze PLI by adding another indicator with fuzzy concept to be able to fit more realistic lives using the data from National Life Council.