This study by McNiven S, Gilligan, DO and Hotz C, studied the sustainability of impact of an agricultural intervention that promoted the adoption and consumption of biofortified orange sweet potato by farming households over two periods - during the project and over four seasons after the project ended. Researchers found that the high adoption rate in the first season declined steadily and even accelerated after the project ended. There was substantial heterogenity in the adoption pattern among initial adopters that was followed by a period of learning about profitability and consumption preference for the crop. The authors also explore the mechanisms that predict decline and persistence in adoption among various types of farmers and consider implications for the cost-effectiveness of the intervention.
Authors of this report estimate the impacts of teacher training programmes aimed at secondary school maths and science teachers on their subject knowledge, teaching practices and student test scores. These training programmes form a key component of the government's efforts to improve quality through the School Sector Development Programme.
Authors of this report evaluate the impact of an intervention that uses a behavioural science approach to increase vaccination coverage in Ethiopia by providing nonmonetary incentives to caregivers and health workers.