Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries...

Objectives: To test the impact of provider performance pay for anaemia reduction in rural China. Design: A cluster randomised trial of information, subsidies, and incentives for school principals to reduce anaemia among their students. Enumerators and study participants were not informed of...

CCT programs have become the anti-poverty program of choice in many developing countries. Numerous evaluations, often based on rigorous experimental designs, leave little doubt that such programs can increase enrollment and grades attained--in the short term. But evidence is notably lacking on...

The effects of early life circumstances on cognitive skill formation are important for later human capital development, labor market outcomes and well-being. In this paper, we test the hypothesis that the first 1,000 days are the critical window for both cognitive skill formation and physical...

We review the literature on the long-term impacts of Conditional Cash Transfer (CCT) programs in Latin America. Long-term impacts are defined as those that both: 1) are related to the accumulation of human capital, and; 2) are observed after beneficiary children have reached a later stage of the...

Conditional Cash Transfer (CCT) programs are important anti-poverty programs in Latin America and the Caribbean. There is little evidence, however, of the effectiveness of ongoing CCT programs several years after they have begun. Such evidence is particularly relevant for policymakers because...

Conditional cash transfer programs have become a popular social protection tool in developing countries. They aim to reduce short-term poverty through cash transfers and long-term poverty through enhancing investments in human capital. While numerous evaluations of CCTs show positive short-term...

We assess the impact of a large-scale social protection intervention, Ethiopia's Productive Safety Net Programme (PSNP), over a 15-year period. We find that the PSNP had a positive impact on food security but inconsistent impacts on assets. There were positive impacts on fertilizer use,...

This paper provides an overview on the impacts of food aid. We consider its effects on consumption, nutrition, food markets and labour supply, as well as the extent to which it exacerbates or mitigates conflict. We also consider the comparative evidence on alternatives to food aid including...

This paper examines early childhood development (ECD) outcomes and their association with family characteristics, investments, and environmental factors, with particular emphasis on the inter-generational transmission of cognitive abilities. The paper examines the causal relationship between...