Effects of Social Network Structure on the Diffusion and Adoption of Agricultural Technology: Evidence from Rural Ethiopia

Y. Todo, P. Matouš, D. Mojo
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引用次数: 23

Abstract

This paper investigates the effects of social network structure on the diffusion of agricultural technologies using household-level panel data from Ethiopia. We correct for possible biases due to the endogeneity of social networks using a social experiment in which we provide mobile phones to randomly selected households. We find that the effect of social networks varies depending on the network structure and characteristics of the technologies considered. The diffusion of information on a simple technology is determined by whether farmers know an agricultural extension agent. However, the diffusion of information on a more complex technology is not promoted by simply knowing an extension agent but by knowing an agent that a particular household can rely on and by clustered networks in which most friends of the household are friends of each other. This finding suggests that knowing and understanding more complex technologies require strong external ties and flows of the same information from multiple sources.
社会网络结构对农业技术传播和采用的影响:来自埃塞俄比亚农村的证据
本文利用埃塞俄比亚家庭层面的面板数据,研究了社会网络结构对农业技术传播的影响。我们通过向随机选择的家庭提供手机的社会实验,纠正了由于社会网络内生性而可能产生的偏见。我们发现,社会网络的影响取决于所考虑的技术的网络结构和特征。一项简单技术的信息传播取决于农民是否了解农业推广机构。然而,在更复杂的技术上,信息的传播不是通过简单地了解一个扩展代理来促进的,而是通过了解一个特定家庭可以依赖的代理,以及通过家庭中的大多数朋友彼此都是朋友的集群网络来促进的。这一发现表明,了解和理解更复杂的技术需要强大的外部联系和来自多个来源的相同信息流。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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