Transaction Networks: Evidence from Mobile Money in Kenya
研究发现肯尼亚家庭通过移动货币实现更高效的风险分散，这得益于更深层的金融整合和更广泛的非正式网络，网络更分散且支持更多互惠金融安排。
Mobile money allows households in Kenya to spread risk more efficiently. In this paper we show that these efficiencies are achieved through deeper financial integration and expanded informal networks. Active networks are more geographically dispersed and support more reciprocal financial arrangements. Consistent with the reported reciprocity, mobile money users report a higher share of transactions as being for credit and insurance purposes.