Abstract
Japanese Economic Growth is maturing and a new goal is needed. There are problems of health care, pension and welfare. The achievement of "Sustainable social Secure" is a new goal. The pension, health care, and education are the independent systems in the institutions of Japan. These systems are needed to be linked. The integration of information in different systems should be developed. THE accessibility of information for the people should be proceeded and the networks should be developed. Now Social-Secure Card project start to solve these problems. In this project the role of regional networks are important. We analyze problems and propose a new approach based on Asymmetric-Information Theory.
