Expansion of Mobile Information Service Needs toward Improving Quality of Life in Japan

The purpose of this paper is to identify how the usage of mobile information services (MIS) contribute to quality of life for young Japanese users. We examined relationships between individual life domains and the domain of overall quality of life based on bottom-up spillover theory. Questionnaire surveys were conducted via online among young Japanese mobile student users of a university. We obtained the data of 107 effective respondents. Comprehensive analyses of the relationships between constructs were conducted by PLS-SEM, of which analytical method is appropriate for a model of non-established nature with many constructs and a small sample size. Results from this study clearly indicated that the relationship between individual contribution and overall contribution are valid and reliable to analyze. Contribution to the leisure life has the highest influence on the overall contribution for Japanese young adults. Further, there were some changes between in 2013 and in 2015 with more positive significant individual domains in the descending order as follows: cultural life, community life, informational life, home-healthcare life, financial life, trustworthy life, health life, and safety life.