Structure of Social Capital in Contemporary Japan : From view points of Social Stratification and Lifestyle.

社会资本被认为是继经济资本、人力资本和文化资本之后的第四资本。本研究的目的在于揭示社会资本的产生过程，以及社会资本在与社会资源和人们的生活方式的关系中所发挥的作用，如国家、社团、社区活动等。本研究采用了社会调查、实验、计算机模拟、实地考察等方法。并于2004年1月进行了问卷调查。我们从1000名随机抽样的人中采访了707人。这是日本第一次全面的社会资本访谈调查，因此它提供了日本社会社会资本的基本见解。综合运用其他实证方法，我们得到了以下发现：1)作为对社会资本的主要组成部分——信任的集中分析结果，主流理论“更多信任的解放理论”所描述的信任产生过程并未得到证实。(2)对邻里协会等中介群体的承诺形成、对俱乐部的自愿参与等中介群体的承诺形成对一般信任的产生起着重要作用。在这种中介群体中发展起来的基于信息的信任，为人与人之间的信任提供了坚实的基础。协方差分析和计算机模拟证实了这一过程。(3)引入“全网基础”概念，区分社会资本和社会资本通过投资和资源回收产生的过程。此外，利用近畿地区的社会调查数据，我们确认了全网基地的作用。这些研究项目的结果被发表在期刊文章、书籍和一个国际会议（日-德科学前沿（JGFoS））上。此外，该项目的结果报告为日本数学社会学协会（Japanese Association for Mathematical Sociology Less）第39届b>会议上举行的研讨会提供了核心贡献

Social capital is thought of as the fourth capital which follows after economic capital, human capital, and cultural capital. The purpose of this research project is to bring out the generating processes of, and function of social capital in the relations with social resources and people's lifestyle such as nationhood association, and community activities. We adopted social survey, experiment, computer simulation, fieldwork as a method of this research. Also, we conducted interview survey in January, 2004. We interviewed 707 people out of 1000 who were randomly sampled. This is the first full-fledged interview survey on social capital in Japan, and therefore it provides basic insights on social capital in Japanese society. Having used other empirical methods together, we obtained the following findings :1)As the results of concentrated analysis of trust, the main component of social capital, the trust generating process which is described in the leading theory, "Emancipation theory of … More trust", was not confirmed.2)For general trust to be generated, commitment formation to intermediary groups such as neighborhoods association, voluntary participation to clubs, plays important roles. Information based trust which is developed in this kind of intermediary groups provide a solid base for trust toward people in general. This process is confirmed by co-variance analyses and computer simulations.3)The concept of "a whole-net base" was introduced in order to make a distinction between social capital and its generating process by investing and recovering resources. In addition, using social survey data in Kinki district, we confirmed the role of a whole-net base.4)These results of the research project were reported in journal articles, books, and also at an international conference (Japanese-German Frontiers of Science (JGFoS). Further, the reports of the results of this project provided the central contributions to a symposium held at the 39^<th> meeting of Japanese Association for Mathematical Sociology Less