理清不同社会层面在小额金融传播中的作用
Untangling the role of diverse social dimensions in the diffusion of microfinance
摘要：
社交网络上个人之间的联系可以代表不同的互动维度，这些网络上信息和创新的传播可能更多地受到某些维度的推动。在本文中，我们调查这个问题，通过研究印度农村村庄内的小额信贷的扩散，并占整个多层结构的底层社交网络。我们定义了一个新的衡量节点的中心性，扩散的多功能性，并表明，这是一个更好的预测小额信贷参与率比以前引入的措施定义在聚合单层社交网络。此外，我们解开了每个社会维度所扮演的角色，发现最突出的角色是由与信任有关的层的中心节点所扮演的，从而为小额信贷扩散的关键触发因素提供了新的线索。
英文摘要：
Ties between individuals on a social network can represent different dimensions of interactions, and the spreading of information and innovations on these networks could potentially be driven by some dimensions more than by others. In this paper we investigate this issue by studying the diffusion of microfinance within rural India villages and accounting for the whole multilayer structure of the underlying social networks. We define a new measure of node centrality, diffusion versatility, and show that this is a better predictor of microfinance participation rate than previously introduced measures defined on aggregated single-layer social networks. Moreover, we untangle the role played by each social dimension and find that the most prominent role is played by the nodes that are central on layers concerned with trust, shedding new light on the key triggers of the diffusion of microfinance.
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