On the Study of Social Networks in Urban Situations.

本研究探讨个人网络与社会资本对城市地方社区的影响。这里使用的数据来自2008年和2009年在东京世田谷区进行的调查研究。2008年的研究有8000个样本。有效率为65.3%。2009年的研究有1万个样本。回复率为54.5%。这两项研究都是通过邮件的方式进行的，可以说回复率达到了很高的水平。分析结果包括许多有趣的发现。

This study explores the effects of personal network and social capital on the urban local community. The dataset used here comes from the survey research in the Setagaya Ward of Tokyo in 2008 and 2009. The research in 2008 had 8,000 samples. The response rate was 65.3%. The research in 2009 had 10,000 samples. The response rate was 54.5%. Both two researches conducted in mail method, we can say the response rates reached high level. The analytical results include many interesting findings.