The impact of social networks on hybrid seed adoption in India
研究印度小农对杂交小麦和杂交珍珠粟的采用，发现个体社交网络在技术采用早期阶段比村庄层面变量更重要。
Abstract This article adds to the literature about the impact of social networks on the adoption of modern seed technologies among smallholder farmers in developing countries. The analysis centers on the adoption of hybrid wheat and hybrid pearl millet in India. In the local context, both crops are cultivated mainly on a subsistence basis, and they provide examples of hybrid technologies at very different diffusion stages: while hybrid wheat was commercialized in India only in 2001, hybrid pearl millet was launched in 1965. The analysis is based on surveys of wheat and millet farmers in the state of Maharashtra. Comprehensive data on farmer characteristics and social interactions allow for identifying individual networks, thereby improving upon previous research approaches that employed village‐level variables as proxies for network effects. Using econometric models, we find that individual social networks play an important role for technology adoption decisions. While village‐level variables may be used as suitable proxies at later diffusion stages, they tend to underestimate the role of individual networks during early phases of adoption.