Impact of inputs, information, and financial services on the adoption of a biofortified crop by women farmers in Uganda
通过随机对照试验，研究了提供投入品、农业推广、营养培训及金融产品对乌干达女性农民采用和消费生物强化甘薯的影响，发现投入品和推广最有效，营养培训仅促进消费，金融产品边际效果有限。
Abstract Smallholder farmers in low‐ and middle‐income countries face several constraints to technology adoption. We test the relative efficacy of interventions designed to incentivize the production and consumption of a biofortified orange‐fleshed sweet potato crop by female farmers in Uganda. Through a clustered randomized controlled trial involving more than 8000 female farmers across 210 communities, we track the impact of the interventions on adoption, consumption, and health outcomes, both in the short term and long term. Our findings suggest that the provision of inputs and agricultural extension is an effective approach to adoption, leading over 60% of households to cultivate and 50% to consume the crop. Nutrition training emphasizing the crop's health benefits has limited impact on cultivation, but it leads 20% of households to consume the biofortified crop. Combining the two approaches with supplementary credit and insurance products has limited marginal effects on adoption. We also observe improvements in dietary diversity resulting from the tested interventions, along with spillover effects through social networks in neighboring communities. We find little evidence of treatment effects on higher‐order outcomes such as visual acuity, child health and nutrition, or income.