期刊名称：Journal of Artificial Societies and Social Simulation
印刷版ISSN：1460-7425
出版年度：2018
卷号：21
期号：4
页码：1-18
DOI：10.18564/jasss.3797
出版社：University of Surrey, Department of Sociology
摘要：We separately identify two mechanisms underlying peer eects in farm households’ adoption of a new crop. A farmer can follow his peers to adopt a new crop because he learns knowledge about the new crop from them (social learning) and because he wants to avoid the damage caused by the practice conflicting with theirs (externalities). Using an agent-based model, we simulate the two mechanisms on a multiplex network consisting of two types of social relationships. The simulation model is estimated using detailed data of social networks, adoption and relevant socio-economic characteristics from 10 villages in China. We find that social learning – in this case, the sharing of experiential resources – among family members and production externalities between contiguous land plots both significantly influence farmers’ adoption. Furthermore, sharing of experiential resources plays a significant role in the entire diusion process and dominates the early phase, whereas externalities only matter in the late phase. This study shows the roles peer eects play in shaping diusion can occur through dierent mechanisms and can vary as the diusion proceeds. The work also suggests that agent-based models can help disentangle the role of social interactions in promoting or hindering diusion.
关键词：Peer Eects; Social Networks; Diusion of Innovation; High-Value Crop
