Publications and Datasets

Estimating the direct and indirect effects of improved seed adoption on yields: Evidence from DNA-fingerprinting, crop cuts, and self-reporting in Ethiopia

Farmers’ adoption of improved crop varieties could increase yields in low-income countries. However, the presence of measurement error in household surveys poses a challenge to estimating true returns. Using the 2018/19 Ethiopia Socio-economic Survey, we analyze the impacts of how three sources of measurement error: misperceptions of seed varieties, land area, and quantities harvested affect maize yields and input use. These data include DNA-fingerprinting of seed, GPS plot size information, and crop cuts that we compare to farmers’ self-reported estimates of these measures. Results indicate that the measurement error in self-reported seed variety adoption, especially from farmers who did not know they were using improved maize varieties, attenuates their estimated yield gains by 25 percentage points on average. The enhanced genetics of improved seed varieties accounts for a 41-percentage point yield increase over non-improved varieties, and increased input use accounts for a 30-percentage point gain for improved varieties on average. JEL classification: D13, O13, N57, Q12, Q16

Fertilizer policy reforms in the midst of crisis: Evidence from Rwanda

Fertilizer subsidies are a prominent feature of many agricultural development strategies in sub-Saharan Africa, but few countries have the necessary data to make rapid decisions about their management in the face of exogenous shocks. This was the case in Rwanda following the rapid increase in international fertilizer prices in 2021–22. Working within a constrained fiscal space that followed the economic downturn caused by the COVID-19 pandemic, the Government of Rwanda aimed to revise its fertilizer subsidy system to accommodate higher fertilizer import prices without compromising progress against its agricultural growth targets. This paper explores both the economic analysis and policy process that shaped decision-making around Rwanda’s fertilizer subsidy system during the period 2020–23. The paper centers on the design and application of a microsimulation model that estimated—almost in real time—the impact of increased fertilizer prices on crop production during this period. It then explores the policy outcomes that followed, emphasizing the scope for subsidy reductions even in the midst of crisis, the critical importance of strengthening agricultural data systems, and lessons for countries facing similar challenges.

Inclusive and gender-transformative seed systems: Concepts and applications

CONTEXT Seed is vital to the nutrition and livelihoods of millions of women and men small-scale farmers in low- and middle-income countries. Seed systems interventions can significantly enhance food security and nutrition by accelerating the adoption of improved varieties and the use of quality seed, which in turn increase the rate of genetic gain, productivity, and household welfare. These interventions can be particularly effective when advancing gender equality by supporting women’s empowerment and addressing discriminatory gender norms. However, there is relatively little evidence on the ways in which seed systems can be an entry point for advancing gender equality by transforming discriminatory gender norms. OBJECTIVES We develop and illustrate a gender transformative approach applied to seed sector development. Our first objective is to provide a framework to better understand how seed systems interventions can contribute to gender equality by (1) integrating gender-accommodative and gender-transformative approaches; and (2) assessing their gendered impacts. Our second objective is to apply this framework to a particular innovation – gender messaging via information and communications technologies (ICTs) – and explore how seed system interventions can be made more gender-transformative. METHODS We first reviewed the existing literature to develop a framework that defines gender-transformative and accommodative seed system interventions and their impacts. We then synthesized lessons learned from the application of this framework to case studies from Ethiopia, Kenya, Tanzania, and Uganda that used ICTs that contained gendered components. RESULTS AND CONCLUSION We discuss how a gender-accommodative approach aims for gender considerations to improve seed systems, while a gender-transformative approach flips the goal around by aiming at progress toward gender equality through seed systems. We find growing evidence on the potential of gender-transformative seed systems interventions to influence positively the empowerment of women and also men, and to create more conducive gender norms, as shown by three case studies on ICT enablers. These case studies also show that accommodative and transformative approaches are often complementary. SIGNIFICANCE We introduce research questions that research and development practitioners can ask to develop accommodative or transformative approaches in seed system interventions, and show the potential of both approaches to progress toward gender equality. The case studies indicate the feasibility of gender-transformative, ICT-enabled seed system interventions, with clear indications of the potential for low-cost adaptation at scale. However, the transformative potential of these interventions requires careful consideration of messaging content, format, and context, as well as strategic public investment and strong political will.

IFPRI-Sudan: Generating evidence-based solutions for strengthening humanitarian response and economic resilience

Sudan is experiencing one of the most severe humanitarian and economic crises in its modern history due to the ongoing conflict between the Sudanese Armed Forces (SAF) and the Rapid Support Forces (RSF). Sudan is now suffering the largest humanitarian crisis in the world. The war has devastated livelihoods, displaced millions, and significantly weakened the country’s agrifood systems and broader economic structures. In response, the International Food Policy Research Institute (IFPRI), along with its partners, has intensified its research and policy engagement in Sudan through the Sudan Strategy Support Program (SSSP), which was launched in 2022. IFPRI’s work on Sudan is centered on addressing fragility, post-conflict recovery, resilience-building, and economic development. Its research and policy engagements focus on food security, economy-wide modeling, social protection, micro, small, and medium-sized enterprises (MSME), and agricultural resilience as it works to provide critical evidence-based insights to support recovery efforts that will enable Sudan to regain peace and economic growth and stability. Through high-frequency data collection, impact evaluations, and policy dialogues, the SSSP team has continued to deliver data-driven solutions to inform humanitarian responses, economic revitalization, and development planning in Sudan. By collaborating with organizations such as the World Food Programme (WFP), the United Nations Development Programme (UNDP), the World Bank, and other CGIAR centers and initiatives, IFPRI, through SSSP, has generated information to design effective interventions for conflict-affected populations and institutions working to rebuild Sudan’s economy.

The full lethal impact of massive cuts to international food aid

Sudan Strategy Support Program (SSSP): Background and research output

The Sudan Strategy Support Program (SSSP), one of the country programs of the International Food Policy Research Institute (IFPRI), commenced operations in May 2022 from the premises of the Arab Organization for Agricultural Development, its official host institution in Sudan. Established with funding from USAID, the United States Agency for International Development, the program has also formed partnerships or received support from a number of prominent organizations, including the CGIAR Initiative on Fragility, Conflict, and Migration, the CGIAR Initiative on NEXUS Gains, the United Nations Development Programme, the World Bank, the World Food Programme, the International Center for Agricultural Research in the Dry Areas, and the International Maize and Wheat Improvement Center (CIMMYT).

Adapting the Women’s Empowerment in Nutrition Index: Lessons from Kenya

Women face a disproportionate burden of malnutrition and food insecurity. Research has shown that women’s empowerment can buffer women against nutritional problems. This paper contributes to ongoing efforts to measure women’s empowerment that are both context-sensitive and universal, focusing on the recently developed Women’s Empowerment in Nutrition Index (WENI). Earlier research has shown it is both a valid construct and positively related to dietary and nutritional outcomes of women in South Asia. We establish that WENI is generalizable to agropastoral and pastoral Kenya, an area with substantially different livelihoods, food system, norms, and institutions than South Asia. We find that a locally contextualized WENI is strongly associated with women’s body mass index and dietary diversity as well as household level food insecurity. We also present findings for two shorter variations of WENI: an abbreviated WENI (A-WENI) and a cross context WENI (CC-WENI). A-WENI contains a small subset of WENI indicators identified using machine learning with South Asian data and therefore is context-specific. CC-WENI does not contain indicators specific to the validation context. We find that they perform comparably well with caveats. Thus, as use of WENI expands we recommend adapting WENI for in-depth analyses of women’s nutritional empowerment; using CC-WENI for cross-context comparisons; and using A-WENI for rapid appraisals of community level progress in a given context.

Dataset on the patterns of livelihood diversification in farming systems of the Eastern Gangetic Plains of South Asia

The Eastern Gangetic Plains (EGP) region, characterized by smallholder-dominated farming, is experiencing rapid socio-economic and environmental changes. To enhance resilience, income stability, and food security, smallholders are increasingly diversifying their livelihoods away from traditional agriculture. However, the patterns and drivers of this diversification remain poorly understood. This study, utilizing data from the Rupantar project, aims to elucidate these patterns, identify key drivers, and assess the impacts on productivity, profitability, nutrition, and inclusion. A mixed-methods approach was employed, including a baseline survey of 1,400 households across India, Nepal, and Bangladesh and analysis using the Simpson’s Index of Diversity (SID). Fractional regression models revealed moderate diversification levels across the EGP with significant geographical and contextual variability. Key drivers included access to resources, gender, education, market access, and institutional support, with differences observed across countries and diversification types. Factors such as non-ownership of irrigation pumps, female household headship, and engagement in off-farm activities were significant predictors of higher diversification. The study found that diversification can enhance income security, nutritional outcomes, and environmental sustainability, although impacts vary by diversification type.

Adoption or placement in foster care and catch-up in linear growth and development: A meta-analysis of individual participant data

Background The ability of children to recover from linear growth retardation, often referred to as catch-up growth, has intrigued researchers for many decades. Whether adoption from a low-to a high-income setting, which provides a comprehensive improvement in the conditions that cause children to not grow well, leads to catch-up growth is unknown. Objective We estimated the association of adoption (or placement in foster care) with catch-up in linear growth and child development before 5 years of age. Methods We conducted a two-stage meta-analysis using individual participant data for linear growth. We obtained study-specific and subgroup estimates and pooled the estimates using random-effects models. Sensitivity analyses were used to assess the robustness of our findings. A review of child development outcomes was conducted. Results We included 485 children under 5 years of age from 9 adoption studies. At baseline, children had a mean age of 15.8 mo and a length deficit of 3.9 cm. Adoption reduced this gap by 77% or 3.0 cm (95% CI: 1.9-4.1 cm)(mean age 32.3 mo). Catch-up growth was found in both girls (3.6 cm; 95% CI 2.9-4.2 cm) and boys (2.5 cm; 95% CI: 1.9-3.1 cm) and in children adopted after the age of 24 mo (2.2 cm, 95% CI 0.6-3.7 cm). The sensitivity analyses did not change any of the substantive findings. The magnitude of catch-up in child development (mean reduction in deficit of 46%) was smaller than in linear growth. Conclusions Catch-up in linear growth in children under five is biologically possible when the environment is improved profoundly and comprehensively. Partial reversal of the accumulated height deficit was more likely than recovery in developmental outcomes which highlights the need to ensure all children grow and develop in environments that prevent deficits from occurring rather than trying to correct them.

The costs of a multisectoral nutrition program implemented through a poultry value chain platform in Burkina Faso

Undernutrition in women and young children in Burkina Faso is a critical problem. Egg consumption is low despite many households raising poultry. The Soutenir l’Exploitation Familiale pour Lancer l’Élevage des Volailles et Valoriser l’Économie Rurale (SELEVER) project, an integrated agriculture-nutrition intervention, promoted egg consumption and sales to investigate the impact of poultry production on child nutrition. Multisectoral nutrition-sensitive agriculture programs address nutrition deficits but lack comparable cost information. This study estimates the costs of the SELEVER program, an integrated poultry and nutrition intervention. The study estimates the program’s economic costs using a standardized methodology from the Strengthening Economic Evaluation for Multisectoral Strategies for Nutrition (SEEMS-Nutrition) consortium, which aligns financial and economic costs along program impact pathways, allocating costs by activities and inputs. We conducted qualitative interviews and focus groups on time allocation and beneficiary out-of-pocket costs. Incremental economic costs were calculated by combining expenditures and economic costs. The total incremental program cost was USD$18,084,727.68 over 5 years, with annual incremental costs of USD$209.20 per direct beneficiary and $796.26 per household. Major cost drivers included overhead (18%), poultry extension (17%), training (16%), household counseling (7%), technical assistance (7%) and microcredit (6%). Total input costs were dominated by personnel (51%), supplies (13%), agricultural inputs (10%) and overhead (9%). We present the total incremental costs of a multisectoral nutrition intervention to generate revenue with poultry. The costs per beneficiary were higher than similar interventions, underscoring the need for cost-effectiveness evaluations of multisectoral nutrition programs. A standardized cost methodology facilitates comparisons with multisectoral nutrition interventions and builds the evidence base.

Impacts of city life on nutrition: Evidence From resettlement lotteries in China

Urban environments are thought to improve food security, by offering enhanced access to markets and income opportunities. Yet this idea is hard to test empirically due to an abundance of confounding factors and selection issues. This study leverages a resettlement program in China to provide the first quasi-experimental estimate of city life on food consumption and nutrition among low-income households. Lottery-determined timing of resettlement enables causal inference. We base our empirics on a 3-year panel and a range of difference-in-differences and matching methodologies. We find that those who were resettled to towns significantly increased both food consumption and diet variety, with increased intake of several macro- and micro-nutrients. Diet quality mostly improved, but we also found signs of over-consumption, notably of carbohydrates. Our evidence further suggests that our impacts are primarily due to improved market access. This stands in contrast to recent literature that finds little or no effect of living environments on food consumption. Instead, we reveal a significant impact of urban environments in shaping diets, bolstering the notion that supply-side channels do matter in some contexts. JEL Classification: I15, O18, R23

The unmet financial needs of intermediary firms within agri-food value chains in Uganda and Bangladesh

JEL Codes: L14, L81, O13, Q13

Evolution of intimate partner violence impacts from cash transfers, food transfers, and behaviour change communication: Mixed-method experimental evidence from a nine-year post-programme follow-up in Bangladesh

Cash or food transfers can reduce intimate partner violence (IPV), but knowledge gaps remain on how impacts evolve over time, and the role of complementary ‘plus’ activities and contextual factors. We conducted a mixed-method analysis of how the Transfer Modality Research Initiative in Bangladesh affected IPV over time. The programme was implemented from 2012 to 2014, following a randomised controlled trial (RCT) design, across Northern and Southern Bangladesh. Intervention arms included monthly cash or food transfers, with or without complementary nutrition behaviour change communication (BCC). We estimate post-programme impacts on IPV using quantitative data collected in 2014–2015, 2018, and 2022, and combine this with qualitative data collected in 2023 to explore how and why IPV impacts evolved over time and the role of contextual factors. In the North, combining cash with BCC led to sustained IPV reductions in each post-programme round, while cash alone reduced IPV in 2022 but not the previous two rounds; food transfers showed no post-programme impacts. In the South, combining food with BCC led to post-programme IPV reductions in 2014–2015; no intervention sustained IPV reductions thereafter. Sustained IPV reductions are primarily driven by improved household economic security and emotional well-being. Other pathways – family relationships (including in-laws’ roles), women’s empowerment, and social and community support – contributed to changing couples’ relationships during the programme but became less salient after the programme ended. Contextual factors, including demographic changes, climate-related changes, external projects and norms condoning IPV appear to influence the sustainability of impacts. Results suggest that ‘plus’ programming was key to sustaining IPV impacts soon after the interventions, but less so by nine years post-programme, as economic security increasingly drove impacts. More mixed method research is needed from the outset to unpack if and how pathways to IPV reduction can be sustained in different contexts over time.

Research priorities for drivers of food choice for food system transformation in South Asia: Proceedings of a collaborative workshop

Agrifood systems in South Asia are highly productive, but substantial challenges including poverty, climate change, and environmental degradation complicate progress toward achieving sustainable healthy diets for all. The dynamics of food systems and the consequence of their rapid transformation for food choice behaviors that contribute to healthy and unhealthy diets are not well understood [1]. Food choice is defined as a decision-making process through which individuals and households consider, acquire, prepare, distribute, and consume foods and beverages [2,3]. Understanding drivers of food choice (DFC) is important for achieving sustainable healthy diets, but evidence is lacking. This article outlines collectively derived priorities for future research on DFC in South Asia. A collaborative workshop was convened in March 2023 in Dhaka, Bangladesh, with experts from the region. The workshop emphasized the application of a science of food choice framework to guide identification of priorities for research on DFC in South Asia. Priorities were derived through an interdisciplinary collaborative process to clarify what is known and not known about DFC in the context of Food Systems Transformation in the region with emphasis on a continuum of food choice behaviors (production, acquisition, preparation, distribution, and consumption). Workshop participants identified the following 3 main priorities for future research on DFC that address knowledge gaps that emerged from discussions: 1) intrahousehold dynamics and behaviors, 2) adolescent food choice, and 3) market and food acquisition linkages. Specific research needs to emphasize the importance of multigenerational data, food allocation, perceptions on food safety, adolescent food choice behaviors, and the need for longitudinal data on linkages between market availability and food choice behaviors. Building a body of evidence on DFC and tools for monitoring and assessing food choice behaviors is essential for designing effective policies and programs that allow all individuals to have healthy and sustainable diets in South Asia.

Sustainable poverty reduction through social assistance: Modality, context, and complementary programming in Bangladesh

Social assistance programs can increase consumption and reduce poverty, but less is known about whether these impacts are sustained after programs end, or how design and context influence sustainability. Using data collected in two regions of Bangladesh four years after a randomized intervention ended, we find that combining cash transfers with complementary programming led to sustained increases in consumption and reductions in poverty. Combining food transfers with complementary programming showed similar patterns, to a lesser extent. Cash alone had context-specific sustained effects; food alone had no sustained impacts. Results suggest that context, modality, and complementary programming matter for sustained impacts.

Weather shocks and rice (Oryza sativa) yield response to fertilizer: Representative field-level evidence from Bangladesh

Does Ukraine need a new Black Sea Grain Initiative?

Nascent agreements over safety of navigation on the Black Sea indicate Russia’s desire to restart the Black Sea Grain Initiative, but Ukraine has already secured—and increased—its agricultural exports without Russia’s cooperation.

Guilty pleasures: Expenditure elasticities of ultra-processed foods and paid meals in India

The rising consumption of ultra-processed foods (UPFs) and paid food away from home (FAFH) is a growing concern for developing countries like India, which face the double burden of persistent malnutrition and increasing obesity. This paper examines the trends and drivers of UPF and paid meal consumption in rural and urban India from 2014 to 2019. Using high-frequency household consumption survey data, we estimate the expenditure elasticity of these food categories. Our results show a significant increase in the consumption of UPFs and paid meals over the study period. The expenditure elasticity of both UPF and FAFH exceeds 1 on average, indicating that they are highly responsive to income growth. Notably, poorer and urban households display higher elasticities compared to wealthier and rural households. Oaxaca-Blinder decomposition reveals that rising incomes and evolving dietary preferences contribute to the increase in UPF and paid meal consumption. These findings underscore the need for targeted interventions to promote healthier food choices, especially among lower-income groups, as India’s economy continues to grow.

Aid budget cuts have dire consequences for malnutrition among the world’s most vulnerable children

Recent aid budgets announced by governments in the US and Europe could cut 2.3 million children off from lifesaving severe acute malnutrition treatment, resulting in 369,000 additional child deaths annually. The US government cuts alone will cause an estimated additional 163,500 annual child deaths that could have been prevented with funding for adequate treatment.

The impact of the African continental Free Trade Agreement: A continentwide macroeconomic assessment and distributional analysis in Nigeria and Rwanda

Africa remains the least open continent in the world, with high trade restrictions for both intra- and extra-African partners. These restrictions include both tariff and nontariff measures, as well as high transportation costs due to poor infrastructure. However, previous studies have highlighted the crucial role of intra-regional trade in boosting national economies, promoting development, and enhancing food security by increasing the availability of food and stabilizing domestic markets. In particular, informal cross-border trade, which is pervasive in Africa, contributes to food security, although further research is needed on its magnitude. This research aims to enhance the understanding of current and future trends in Africa’s food systems, focusing on continental) trade and its impact on national economies and markets. Its objective is to assess the impact of the African Continental Free Trade Agreement (AfCFTA), the most ambitious regional trade agreement in Africa, on national economies and markets. The study uses state-of-the-art tools, includes informal cross-border trade of agricultural products, and considers realistic scenarios of trade liberalization. The study finds that the AfCFTA’s impact will be positive, although limited. Because most African countries are already trading under preferential regimes within regional economic communities (RECs), AfCFTA primarily affects trade flows outside of these communities. We observe traditional trade diversion effects from partners outside of Africa (up to −1.68 percent) and trade creation within the continent (up to 18.48 percent). Like the agreement’s macroeconomic impacts on gross domestic product growth and trade, its effects on poverty are also limited, with more positive effects in Rwanda than in Nigeria, the two countries analyzed in the microsimulation. A gender bias is present in the results: Female-headed house-holds benefit less from the agreement than male-headed households. Given the continent’s high trans-portation costs, significant gains can occur by reducing transport margins in addition to implementing the AfCFTA. In that case, the positive results are amplified, while the negative effects are dampened. Because AfCFTA implementation is still in early stages, more information is needed to fine-tune the results. First, it is important to examine the assumptions behind the selection of sensitive and excluded products. In the absence of official lists, which are not available for most countries, the final lists may differ from the selection made in this report, although the method we use has proven to be effective for past agreements. In addition, rules of origin and other nontariff measures will play a significant role in the future of the agreement, affecting the results and likely changing the distribution of gains and losses.

Intensive and extensive margins of India’s agricultural trade: implications for export diversification and development

This paper aims to analyze relative contribution of intensive margin (IM) and extensive margin (EM) to growth in India’s agricultural exports for the period 2001 to 2020. It also analyses the determinants of IM and EMs through a standard gravity model.The study uses export data from United Nations Comtrade, which is accessed through World Integrated Trade Solution (WITS) software. Data for the period 2001 to 2020 were compiled for analysis using the Harmonized System (HS) of commodity classification system at the six-digit level. This study decomposed the contribution of IM and EM in the growth of Indian agricultural trade by using Hummels and Klenow’s approach. After performing the export decomposition analysis, the authors analyze the factors influencing IM and EM by using the Tobit regression model and Poisson pseudo-maximum-likelihood (PPML) method of estimation.The EM grew at 1.24% per annum, while the intensive margin (IM) increased by 0.23%. The contribution of growth at the EM increased from 58.8% in 2001 to 70.2% in 2020. Export growth along the IM was relatively high for animal products and agricultural raw materials, while growth at the EM was an important contributor to the export growth of horticultural and processed agricultural products. There was a positive and significant effect of the free trade agreement (FTA) on export margins.More disaggregated commodity-specific studies on value chain analysis would provide valuable insights into the issues hindering exports and realizing the untapped export potential.There is a scarcity of holistic and recent studies illustrating the role of IM and EMs in agricultural trade growth, covering a large number of commodities and geographies associated with Indian agricultural trade. The study would be helpful to the stakeholders in facilitating informed policy decisions.

Synopsis: The dynamic impact of alternative livestock sector interventions and spending options in Rwanda

This study evaluates the cost-effectiveness of various livestock interventions—feed, breeding, and health—and budget allocation strategies (balanced, feed-oriented, breeding-oriented, and health oriented) in the context of Rwanda’s economic and livestock systems. Using an economic and livestock systems integrated framework, the research highlights moderate yet sustained impacts on agricultural Gross Domestic Product (GDP) and significant improvements in the livestock sector. Breeding interventions have the largest cumulative effect on agricultural GDP, while health measures, particularly dewormers, yield long-term gains in livestock productivity. Under the balanced scenario, breeding contributes significantly to both meat and milk sector GDP, while feed interventions show a smaller impact overall. The model estimates the economic and livestock systems over a period of five years (t1-t5) from a base year at t0, which corresponds to the Fifth Structural Transformation in Agriculture (PSTA5) period.

SELEVER study: Endline survey

The Soutenir l’Exploitation Familiale pour Lancer l’Élevage des Volailles et Valoriser l’Économie Rurale (SELEVER) study was a cluster randomized controlled trial conducted in rural Burkina Faso to evaluate the impact of an integrated agriculture-nutrition intervention on the diets, health, and nutritional status of women and children. The intervention package combined poultry value chain development, women’s empowerment initiatives, and a behavior change communication strategy to promote healthier diets and improved feeding, care, and hygiene practices. Data collection took place in rural communities across three regions—Boucle du Mouhoun, Centre-Ouest, and Haut-Bassins—over four rounds between March 2017 and August 2020. The baseline survey (Round 1) was conducted from March to June 2017, during the post-harvest season, and included a sample of 1,800 households. Follow-up 1 and Follow-up 2 (Rounds 2 and 3) were carried out during the lean season, with data collected in September–October 2017 and September–October 2019, respectively, from a subsample of 1,080 households. The endline survey (Round 4) took place from March to August 2020, with a temporary pause in data collection due to COVID-19 restrictions. The study aimed to assess the effectiveness of the intervention package in enhancing nutritional outcomes for women and children in the targeted communities. The data presented here are from the endline survey.

SELEVER study: Second follow-up survey

The Soutenir l’Exploitation Familiale pour Lancer l’Élevage des Volailles et Valoriser l’Économie Rurale (SELEVER) study was a cluster randomized controlled trial conducted in rural Burkina Faso to evaluate the impact of an integrated agriculture-nutrition intervention on the diets, health, and nutritional status of women and children. The intervention package combined poultry value chain development, women’s empowerment initiatives, and a behavior change communication strategy to promote healthier diets and improved feeding, care, and hygiene practices. Data collection took place in rural communities across three regions—Boucle du Mouhoun, Centre-Ouest, and Haut-Bassins—over four rounds between March 2017 and August 2020. The baseline survey (Round 1) was conducted from March to June 2017, during the post-harvest season, and included a sample of 1,800 households. Follow-up 1 and Follow-up 2 (Rounds 2 and 3) were carried out during the lean season, with data collected in September–October 2017 and September–October 2019, respectively, from a subsample of 1,080 households. The endline survey (Round 4) took place from March to August 2020, with a temporary pause in data collection due to COVID-19 restrictions. The study aimed to assess the effectiveness of the intervention package in enhancing nutritional outcomes for women and children in the targeted communities. The data presented here are from the second follow-up survey.

SELEVER study: First follow-up survey

The Soutenir l’Exploitation Familiale pour Lancer l’Élevage des Volailles et Valoriser l’Économie Rurale (SELEVER) study was a cluster randomized controlled trial conducted in rural Burkina Faso to evaluate the impact of an integrated agriculture-nutrition intervention on the diets, health, and nutritional status of women and children. The intervention package combined poultry value chain development, women’s empowerment initiatives, and a behavior change communication strategy to promote healthier diets and improved feeding, care, and hygiene practices. Data collection took place in rural communities across three regions—Boucle du Mouhoun, Centre-Ouest, and Haut-Bassins—over four rounds between March 2017 and August 2020. The baseline survey (Round 1) was conducted from March to June 2017, during the post-harvest season, and included a sample of 1,800 households. Follow-up 1 and Follow-up 2 (Rounds 2 and 3) were carried out during the lean season, with data collected in September–October 2017 and September–October 2019, respectively, from a subsample of 1,080 households. The endline survey (Round 4) took place from March to August 2020, with a temporary pause in data collection due to COVID-19 restrictions. The study aimed to assess the effectiveness of the intervention package in enhancing nutritional outcomes for women and children in the targeted communities. The data presented here are from the first follow-up survey.

SELEVER study: Baseline survey

The Soutenir l’Exploitation Familiale pour Lancer l’Élevage des Volailles et Valoriser l’Économie Rurale (SELEVER) study was a cluster randomized controlled trial conducted in rural Burkina Faso to evaluate the impact of an integrated agriculture-nutrition intervention on the diets, health, and nutritional status of women and children. The intervention package combined poultry value chain development, women’s empowerment initiatives, and a behavior change communication strategy to promote healthier diets and improved feeding, care, and hygiene practices. Data collection took place in rural communities across three regions—Boucle du Mouhoun, Centre-Ouest, and Haut-Bassins—over four rounds between March 2017 and August 2020. The baseline survey (Round 1) was conducted from March to June 2017, during the post-harvest season, and included a sample of 1,800 households. Follow-up 1 and Follow-up 2 (Rounds 2 and 3) were carried out during the lean season, with data collected in September–October 2017 and September–October 2019, respectively, from a subsample of 1,080 households. The endline survey (Round 4) took place from March to August 2020, with a temporary pause in data collection due to COVID-19 restrictions. The study aimed to assess the effectiveness of the intervention package in enhancing nutritional outcomes for women and children in the targeted communities. The data presented here are from the baseline survey.

The double burden of food and water insecurity: Implications for health, equality, and policy

Food and water insecurity reflect a lack of reliable access to sufficient, safe, and affordable food and water to meet basic human needs. Both have significant impacts on nutrition, physical and mental health, learning, and family cohesion; however, their combined effects remain understudied. With a high co-occurrence observed across numerous low- and middle-income countries (LMICs), these insecurities are rooted in systemic factors, such as poverty, climate-related environmental stressors, resource scarcity, inadequate public infrastructure, weak governance, and conflict. Wang et al examined the association of the co-occurrence of food and water insecurity with functional disabilities in Ecuadorian adults. This novel research builds on emerging evidence on the intersectional implications of food and water insecurity for human well-being.

Farmers’ pesticide use, disposal behavior, and pre-harvest interval: A case study from Nigeria

In Sub-Saharan Africa, small farmers rely heavily rely on synthetic pesticides, the overuse of which poses significant risks to human health, the environment, and food safety. Yet detailed empirical evidence on knowledge of and the knowledge and drivers of pesticide management practices remains scarce, limiting insights for policymakers and development practitioners. To address this gap, we leveraged on data collected from 1556 tomato producers in Northern Nigeria to investigate the determinants of pesticide use behavior using a sequential-exploratory mixed-method approach. We examined a broader range of pest management-related practices than prior literature, including safety equipment usage, pesticide disposal methods, and adherence to pre-harvest intervals (PHIs)-, which is the intervals between the last pesticide application and the crop harvest. We found substantial noncompliance with the recommended practices: 45% of farmers reuse empty pesticide containers for other purposes, 14% discard them on the farm, 15% burn containers in open fires, and 40% harvest tomatoes within 1–5 days after pesticide application, violating the 7-day PHI guideline. These findings suggest that many tomato farmers adopt unsafe practices, which have adverse implications for their health, the environment, and the safety of food available to consumers. We show that training on pesticide disposal and midstream market channels (e.g., wholesalers and aggregators) are strongly correlated with improved pesticide handling and higher PHI compliance. Overall, our results underscore the need for targeted training programs to enhance farmers’ awareness of safe pesticide application, disposal practices, and PHI adherence. These efforts should be complemented by stronger regulatory frameworks and mechanisms to align farmer pesticide use practices with consumer preferences for safe products, as observed by in the higher PHI adherence among farmers selling to midstream actors.

Contract Farming in Developing Countries: The promise and its perils

Contract farming is an institutional arrangement between farmers and businesses to produce and transact agricultural commodities at predetermined prices and conditions, and it has recently received a heightened amount of attention despite being a relatively old phenomenon. A new wave of agricultural industrialization and the emergence of large-scale food retailing in developing countries may be precipitating the unprecedented shift in favor of contract farming. This open access book identifies the methodological differences across disciplines that have generated a false binary in discussions of contract farming. The author explains the importance of adopting a more integrated theoretical perspective, providing insights into the ways in which this can reconcile conflicting positions. Given the immense diversity of contracting schemes, commodities and contexts—as well as the substantial regional differences in contract farming experiences across a range of outcomes—a syncretic understanding of contract farming is essential to the evaluation of the promise and perils of contract farming. The resulting book proposes a way forward that is holistic in nature, framing contract farming within a comparative institutional analysis so that it can better accommodate multidisciplinary priorities.

Tajikistan’s agrifood system: The past performance and future opportunities and challenges

This study analyzes the past performance and future opportunities and challenges of Tajikistan’s agrifood system (AFS). The study measures the current size and structure of AFS and its historical contribution to economic growth and transformation through a data-driven exercise. A forward-looking economywide model is used to assess the effectiveness of future AFS growth (led by agricultural productivity gains in different value chains) in promoting multiple development outcomes. The findings of the study indicate that AFS transformation is an important part of Tajikistan’s economic transformation and structural change. Because of lower growth contributions from AFS’s off-farm components as well as fewer farm workers moving from primary agriculture to off-farm activities within AFS, Tajikistan’s AFS did not grow as quickly as the broader economy. Expanding off-farm activities to boost on-farm productivity growth remains a challenge for sustainable transformation of Tajikistan’s AFS. Using an economywide model, we find that there is no single value chain group that would most effectively achieve all desired development outcomes including broad economic growth, job creation, declining poverty, and improved diets. Livestock value chains, however, have the most potential to contribute to multiple development outcomes, particularly to dietary improvement, and these value chains also performed impressively during the study period. Moreover, most cattle and ruminants are owned by household farms, and their growth could contribute to broader agricultural transformation. The maize value chain also ranks high in the model-based comparison, but it seems to only modestly contribute to job creation and diet quality and had performed disappointingly during the study period. While growth in livestock and maize value chains face a series of challenges and constraints, promoting them together seems to offer an effective way to broadly achieve important development outcomes.

Papua New Guinea Rural Household Survey, 2023

The Papua New Guinea Rural Household Survey (2023) collected detailed household-level data on agricultural production, food and non-food consumption and expenditure, and livelihood strategies across 14 provinces, covering communities in the highlands, lowlands, and islands of Papua New Guinea (PNG). The survey was designed using a purposive sampling strategy based on defined agro-ecological zones, which allows for the analysis of key factors influencing rural households and communities. It is important to note that the survey is not nationally representative; however, given the careful random selection of survey areas, we expect that generalizable relationships between variables affecting socio-economic and other development outcomes in rural PNG communities will be consistently observed across representative samples and in this survey. These factors include those that contribute to more resilient local food systems, diversified employment opportunities, and improved household wellbeing. The survey encompasses 2,699 households in 270 communities, spanning five agroecological zones. It features detailed modules on a wide range of topics relevant to rural livelihoods, agricultural production, and household wellbeing.

Preferences for ecosystem payment programs in Papua New Guinea

We evaluate forest landholders’ preferences to enter a hypothetical Payment for Ecosystem Service (PES) contract (i.e., voluntary carbon credit contract) and assess the relative importance of different program attributes that influence forest landholder preference for such contracts. When evaluating the attractiveness of PES contracts for forest landholders, analysis suggests that on average, forest landholders are not inclined to enter a PES contract. However, when evaluating differences among households, a variety of characteristics shape the willingness to accept a PES contract, including:  Landholders that are aware of climate change impacts and those from communities that previously participated in forest protection programs are more likely to accept a PES contract.  Households that use forested land for commercial logging or hunting grounds are more inclined to accept a PES contract, viewing these contracts as an opportunity to protect forest goods and services.  Households that rely on forested land for timber harvesting for personal building purposes are less likely to join a PES program, viewing contracts as restrictive to personal land use needs. When assessing different levels of contract attributes (e.g., payment amount, forest area requirement, and contract length), analysis suggests that forest landholders are more likely to accept a contract that:  Offers higher financial incentives  Requires half of their forested land to be under contract (compared to all of their forested land). On average, forest landholders require an additional annual compensation of $39.07 USD (152 PGK) per hectare to accept PES contracts that require full forested land preservation compared to preserving half of their forested land.

Imperfect competition and asymmetric welfare effects of global price and productivity shocks: a CGE model analysis for Senegal

This article investigates the asymmetric effects of global price and productivity shocks on welfare in the context of imperfect competition. The primary objective is to understand how market concentration affects the transmission of economic shocks and their impacts on various households. A CGE model, calibrated on a 2014 social accounting matrix for Senegal, is used. The model features a trading sector operating under a Cournot oligopoly with increasing returns to scale. Two scenarios are simulated: a 15% increase in global import prices and a 10% increase in agricultural productivity, each considering different levels of market concentration. The findings reveal that higher global import prices reduce household well-being, a situation exacerbated by low market competition. In contrast, agricultural productivity gains enhance well-being, with these benefits amplified by greater competition. However, the wealthiest households in Dakar benefit from low competition due to their positions in oligopolistic companies. To maximize household well-being, economic policies should focus on strengthening market competition, particularly in the trading sector. Actions such as reducing entry barriers for new businesses and regulating anti-competitive practices can help mitigate the adverse effects of global price increases and amplify the benefits of agricultural productivity gains.

IFPRI Malawi monthly maize market report, February 2025

Highlights  Retail prices of maize increased by 32 percent in February as a result of a similar decrease in the value of Malawi Kwacha on the informal market.  Maize prices were lowest in the Northern region, where informal imports from Tanzania enter the country, and increased southward.  At the market exchange rate, retail prices of maize in Malawi were similar to those in Zambia and Mozambique, but lower than in Zimbabwe.

Under the gun: Military and paramilitary actors in Sudan’s agri-food system

Armed actors, including militaries and paramilitaries, are heavily entrenched in the agrifood systems of several low- and middle-income countries, often resulting in negative implications for both agricultural transformation and democratic transitions. However, the role of armed actors is overlooked in the scholarship on the governance of agricultural value chains. To address this gap, this paper focuses on the role of the Sudanese Armed Forces (SAF) and Rapid Support Forces (RSF) in Sudan’s agrifood system. Through over 50 semi-structured interviews with key stakeholders, the paper traces how the SAF and RSF initially gained their foothold in the agrifood system and how they interact with each other, and the private sector across diverse value chains. We argue that these actors decide to pursue investments in certain value chains depending on the extent to which the private sector is already involved and the degree of technical complexity required to attain more profitable product upgrading. Based on these considerations, we uncover four strategies used by SAF and RSF in different value chains: exclusive capture and rent extraction, competition through biased licensing and quota allocations, acquiescence to existing private competitors when value-addition is too complex, and innovation when potential is high and the private sector is absent. We show how these strategies manifest across value chains as diverse as livestock, wheat, gum Arabic, and horticulture, with secondary applications to other commodities. Given that economic competition between SAF and RSF was a major factor in the outbreak of the 2023 armed conflict, identifying how these strategies emerged and manifested not only contributes to the literature on business-state relations but also expands insights about the political economy antecedents of large-scale conflict.

Report on state-level training programme for FPOs in Odisha

This report summarizes the outcomes of two-day State-Level Training Program for Farmer Producer Organizations (FPOs) for 3 batches held in Bhubaneswar, Odisha, from December 12-23, 2024. Organized by the Department of Agriculture & Farmer Empowerment (DAFE), Government of Odisha, in collaboration with the International Food Policy Research Institute (IFPRI) and the CGIAR, the program aimed to enhance the knowledge and skills of FPO functionaries across the state. The training program, conducted across three batches, engaged approximately 131 participants, with a significant representation of women. The participants comprised CEOs and Board of Directors (BoD) members of FPOs from diverse districts of Odisha. The training curriculum was designed to address key areas of concern for FPOs, including FPO management, shareholder engagement, post-harvest management, certification, and market access. Experienced trainers, including Shri K.K. Jha and Shri Sujay Kar, along with researchers from IFPRI, delivered interactive sessions on these topics. The training program was well-received by the participants, with a strong emphasis on practical learning and interactive discussions. Key areas of interest for the participants included FPO management strategies, optimal shareholder numbers, post-harvest management practices, product certification, and exploring diverse marketing channels for their produce. This training program serves as a crucial step towards strengthening FPOs in Odisha by equipping them with the knowledge and skills necessary for sustainable growth and success. The insights and learnings gained from this program will be valuable in further enhancing the capacity of FPOs to contribute to the development of the agricultural sector in the state. The training program highlighted the critical role of Farmer Producer Organizations (FPOs) in improving farmer livelihoods and strengthening the agricultural sector in Odisha. It provided a valuable platform for FPO functionaries to enhance their knowledge and skills in key areas of FPO management, such as financial management, marketing, and governance. The program fostered peer learning and networking among FPO representatives from different parts of the state. Furthermore, it identified key areas of concern and priorities for FPOs in Odisha related to the size, composition and structure, and tried to put forward some workable strategies to further strengthen the FPO ecosystem in the state. This executive summary provides a concise overview of the FPO training program, its objectives, methodology, and key outcomes.

Co-occurrence of stunting and off-track early child development in low- and middle-income countries

Importance: Although children across low- and middle-income countries (LMICs) are increasingly surviving, many are not fully thriving. Both stunting and off-track early child development (ECD) hinder children’s potential to thrive. Objectives: To estimate the global prevalence of the co-occurrence of stunting and off-track ECD and explore its association with nurturing care and sociodemographic factors. Design, Setting, and Participants: This cross-sectional study pooled data from the most recent Demographic and Health Surveys and Multiple Indicator Cluster Surveys (2010-2020) on 173 416 children aged 36-59 months in 41 LMICs. Statistical analysis was conducted from February to December 2024. Exposure: Risk factors pertaining to inadequate nurturing care, low socioeconomic status, and other sociodemographic characteristics. Main Outcomes and Measures: Children were classified into 4 groups with respect to thriving: children who were stunted only (height-for-age z score <−2 SD), off-track ECD only (measured using the Early Childhood Development Index), both stunted and off-track ECD (co-occurrence), or neither. Results: In the pooled sample of 173 416 children, the mean (SD) child age was 47.1 (6.8) months, and 88 242 (50.9%) were boys. Approximately 1 in 6 children (17.0% [95% CI, 16.8%-17.2%]) were both stunted and had off-track ECD, 17.1% (95% CI, 16.9%-17.3%) were stunted only, 27.8% (95% CI, 27.6%-28.0%) had off-track ECD only, and 38.1% (95% CI, 37.9%-38.4%) were neither stunted nor had off-track ECD. Socioeconomic gradients were observed, with more co-occurrence in lower-income countries (18.2% [95% CI, 17.9%-18.6%]), poorer households (22.1% [95% CI, 21.7%-22.5%] for poorest wealth quintile), mothers with lower educational levels (20.8% [95% CI, 20.6%-21.0%] for primary education or less), and rural settings (19.3% [95% CI, 19.1%-19.6%]). Various indicators of inadequate nurturing care along with low socioeconomic status were associated with co-occurrence. The top 5 factors associated with co-occurrence were poorest wealth quintile (adjusted odds ratio [AOR], 2.75; 95% CI, 2.53-2.99), no early childhood education (AOR, 2.22; 95% CI, 2.10-2.34), low maternal educational level (AOR, 1.44; 95% CI, 1.37-1.51), no toys at home (AOR, 1.43; 95% CI, 1.35-1.51), and diarrhea (AOR, 1.38; 95% CI, 1.31-1.45). The associations of poor household wealth, no birth registration, and no early childhood education with co-occurrence were significantly larger than their associations with stunting only or off-track ECD only. Conclusions and Relevance: This cross-sectional study of young children in LMICs suggests that a significant proportion were both stunted and had off-track ECD. These findings underscore the need for multisectoral interventions that holistically target nutrition, health, and ECD risks to ensure that all children globally can thrive, especially those facing the double burden of stunting and off-track ECD.

Quality of routine health and nutrition data in Ethiopia: A systematic review

Background High-quality data are vital for informed decision-making, enhancing population health, and achieving comprehensive insights. However, there is limited understanding of the consistency and reliability of routine Health Management Information System (HMIS) including nutrition data across diverse regions in Ethiopia. This study systematically reviewed the existing literature to address these knowledge gaps. Methods We systematically searched PubMed, HINARI, and Google Scholar for studies published from 2015 onwards to assess HMIS, including nutrition data quality in Ethiopia. The evaluations focused on completeness, consistency, and timeliness metrics defined by the WHO. We included diverse regional studies without indicator restrictions, prioritized data quality metrics as primary outcomes, and explored qualitative reasons for poor data quality as secondary outcomes. Results Of the 1790 papers screened, 25 met the inclusion criteria. The completeness of reporting varied widely among studies (50%–100%), with only 21% (4 out of 19) exceeding 90%. The consistency ranged from 38.9% to 90.5%, with only 6% of studies reporting internal consistency above 90%. Other consistency issues included lack of external consistency, indicator discrepancies, and outliers. Timeliness ranged from 41.9% to 93.7%, with 54% of studies reporting below 80%. In addition to the lack of studies addressing nutrition data, the quality was no better than other components of HMIS. The major factors contributing to poor data quality were human resource shortages, insufficient capacity building, behavioural influences, and infrastructural deficits. Conclusion The HMIS including nutrition data in Ethiopia, exhibited deficiencies in completeness, consistency, and timeliness, which were largely, attributed to capacity and resource constraints. Interventions should prioritize resource allocation, staff training, supervision, and feedback mechanisms to enhance data quality, thereby improving decision-making processes and population health outcomes.

Armed conflict and gendered participation in agrifood systems: Survey evidence from 29 African countries

This paper provides empirical micro-level evidence on the gendered impacts of armed conflict on economic activity in agriculture and other sectors, combining large-N sex-disaggregated survey data with temporally and spatially disaggregated conflict event data from 29 African countries. We find that local conflict exposure is only weakly related to labour-force participation, but strongly reduces the total number of hours worked and increases engagement in the agricultural sector. These net impacts exist for both men and women. However, the reduction in hours worked is significantly greater among men, while the increase in agricultural activity is significantly greater among women. In the longer term, impacts of conflict on employment two years later are stronger when no more conflict ensues than if further conflict occurs, challenging the widespread idea of one-off conflict shocks fading away over time and suggesting that labour markets adapt to and absorb lasting conflict situations. Different types of conflict event have qualitatively similar impacts, which are strongest for explosions, such as from air strikes or landmines. Overall, our findings underline that armed conflict entails structural economic, social and institutional change, which creates complex, gendered impacts on economic activity.

Building Ethiopia’s food security resilience to climate and hydrological change

Historically Ethiopia’s food security has been sensitive to climatic variability, but changes in future weather and climate could lead to overall reductions and increased variability in agricultural production, without further adaptation. We present an integrated modelling assessment framework which combines climate, crop, and hydrological modelling to quantify future risks to Ethiopia’s food security. We explore the impacts of 2°C and higher climate change scenarios on water availability and crop yields and simulate how future climate shocks may impact Ethiopia’s food. We consider three adaptations to agricultural management practices (improved seed varieties, increased use of nitrogen fertilizer and supplementary irrigation) and quantify their effectiveness in enhancing the resilience of Ethiopia’s food system to climate and hydrological change by 2050. Results show that, without policy intervention, climate change creates a risk of declining Meher season crop yields across Ethiopia. Under the worst climate change scenario, teff (−12.0%), barley (−6.7%), and wheat (−4.4%) are projected to have the largest decline in average yields, whilst maize (−0.1%) and sorghum (+0.9%) yields are less impacted thanks to more favourable growing conditions. However, the results also indicate that the adaptation options have a bigger beneficial effect than the climate impact. Of the policies evaluated, improved seeds have a relatively greater effect than increased fertilizer use. Supplementary irrigation could help to mitigate increases in crop water requirements under warmer climate conditions and is most effective in drought prone basins and for drought-vulnerable crops. Overall, the results show that locally relevant agricultural policies are necessary to build Ethiopia’s food system resilience to climate and hydrological change by the mid-century.

Perspective: Can growth monitoring and promotion accurately diagnose or screen for inadequate growth of individual children? A critical review of the epidemiological foundations

Growth monitoring and promotion (GMP), the process of periodic anthropometric measurements to assess the adequacy of individual child growth, is implemented across low- and middle-income countries (LMICs). The epidemiological foundations of GMP (i.e., that GMP can accurately diagnose or screen for inadequate growth) have never been critically reviewed. We first assessed growth patterns of individual healthy children. Using longitudinal data from low-, middle-, and high-income countries, we evaluated whether commonly used GMP criteria can be used for diagnosis and screening; i.e., if they accurately identify current, or predict subsequent, inadequate growth in individual children. The growth of individual healthy children does not track along a specific growth curve which challenges the notion that growth measurements alone can be used to distinguish between healthy and inadequate growth. We demonstrate that GMP criteria do not provide meaningful diagnostic information and that GMP is not a meaningful screening activity: commonly used GMP criteria are inaccurate predictors of (inadequate) growth later in childhood; and collecting individual children’s weight and height does not help to identify who needs support or who will benefit. Our results do not undermine the importance of dedicated programs to diagnose wasting in individual children nor do they challenge the need for well-child care to support parents and to ensure children’s optimal nutrition, health, and development. Our findings, however, highlight the need to carefully reconsider the current design of GMP in LMICs.

Risk-appropriate, science-based innovation regulations are important

Protocol: Food environment, food choice, diets, and nutrition outcomes of pastoralists in Africa: Scoping review protocol

This is the protocol for a Campbell scoping review. The objectives are as follows: (i) To define and characterize the food environment of pastoralists in Africa; (ii) To identify the domains of the food environment that have been studied in pastoralist settings in Africa; (iii) To assess the relationship between the food environment and food choice, dietary intake, and nutrition outcomes among pastoralists in Africa; and (iv) To map the study designs, methods, and geographical coverage of the studies.

Seed certification, certified seeds use and yield outcomes in Nigeria: Insights from nationally-representative farm panel data and seed company location data

CONTEXT Despite the importance of enhanced seed quality to agricultural productivity growth, evidence remains scarce regarding the nature and possible drivers of returns to formal sector quality assurance systems, including certified seeds production in countries like Nigeria that focus significantly on the formal-sector seed systems. OBJECTIVE This study narrows this knowledge gap by estimating the effect of the quantity of certified seeds produced and the spatial variations where they are produced on the use of certified seeds and yields. We also assess the yield effects of certified seeds use and their relationship with agroclimatic and socioeconomic conditions. METHODS We combine nationally-representative farm-household survey panel data with spatial data on the headquarters locations of seed companies, the quantity of certified seeds for maize, cowpea, and rice that they produce, and spatially explicit agroecological data. We apply panel fixed effects methods as well as instrumental-variable methods to address potential endogeneity associated with certified seeds use while also controlling for the use of improved varieties to separate their effects from the effects of certified seeds. RESULTS AND CONCLUSIONS Our findings indicate that the availability of certified seeds—captured by indicators of certified seeds produced by seed companies headquartered in the states of survey respondents—is associated with positive but declining marginal effects on certified seeds use and yields. These results are robust when we also consider the potential within-state heterogeneity in the proximity to seed company headquarters, as well as potential spillovers from the nearest adjacent states. The yield effects of certified seeds are heterogeneous and depend on agroclimatic conditions and farmers’ socioeconomic characteristics. The use of certified seeds is somewhat higher in areas with higher yield effects after controlling for certified seeds production. These patterns partly lead to observed non-linearities in certified seeds use because certified seeds may be more likely to be used by farmers with higher expected returns than farmers with lower expected returns. These results underscore the importance of spatially targeted efforts in enhancing certified seeds production capacity, together with the exploration of intermediate quality standards in the short term where costs of seed certification are high relative to returns. SIGNIFICANCE The study provides unique quantitative evidence in a nationally representative framework in an African country that returns to seed certification systems in the current setting significantly vary depending on contexts, including agroclimatic conditions.

Global analysis reveals persistent shortfalls and regional differences in availability of foods needed for health

Sufficient food is available in the world for all people to consume sufficient calories, but not healthy diets. This study traces historical and projected changes in global food systems toward alignment with the new Healthy Diet Basket (HDB) used by UN agencies and the World Bank to monitor the cost and affordability of healthy diets worldwide. Using the HDB as a standard to measure adequacy of national, regional and global supply-demand balances, we find substantial but inconsistent progress toward closer alignment with dietary guidelines, with large global shortfalls in fruits, vegetables, and legumes, nuts, and seeds, and large disparities among regions in use of animal source foods. Projections show that additional investments aimed at reducing chronic hunger would modestly accelerate improvements in adequacy where shortfalls are greatest, revealing the need for complementary investments to increase access to under-consumed food groups especially in low-income countries.

Shocks and stability of risk and time preferences among poor rural households in Ethiopia

This paper examines the effects of shocks on temporal stability of risk and time preferences of rural households within a developing country context characterized by frequent droughts, chronic food insecurity, and low levels of education. Leveraging a three-wave large and diverse household panel data that elicits preferences every two years for more than 6,500 individuals from over 5,600 sample rural households in Ethiopia, we analyze the effects of droughts (self-reported) and rainfall shortfalls on household risk and time preferences. Our findings show that households become more risk-averse and impatient after experiencing drought and rainfall shocks; the change in risk preferences is more notable among households that experience recurrent droughts and multiple covariate shocks during the same period.

Impact of farm size on the function of landscape-level payments for ecosystem services: An agent-based model study

Reducing pesticide use and restoring biodiversity are among the most pressing environmental challenges. Enhancing natural pest control ecosystem services through the integration of non-crop habitats (NCH) offers promising potential, creating a positive feedback loop by harnessing insect biodiversity to reduce pesticide reliance. Policy support is needed at the landscape level to encourage adoption of this currently underutilized approach, which depends on spatial coordination and collective behavioral change. Farm size, which critically influences farmers’ agrochemical inputs, agroecological practices, and interactions with neighboring farms, varies across agricultural landscapes. It is unclear what role farm size plays in landscape-scale agri-environmental incentive programs, which have recently seen growing attention in scientific research and policy implementation. We employ framed field games and agent-based modeling as complementary research tools, exploring how farm size impacts the function of landscape-scale NCH subsidies aimed at encouraging coordinated provision and sharing of natural pest control services to reduce pesticide use. Our model simulation shows that, in landscapes of larger average farm size or lower farm size heterogeneity, NCH subsidies are significantly more effective at reducing pesticide use and increasing NCH efficiency in providing joint production benefits. Our results imply that landscape-scale payments for natural pest control ecosystem services face fewer obstacles as incentive-based mechanisms in landscapes of larger, more homogeneous farms, supporting the implementation of landscape-scale initiatives in such areas to effectively enhance ecosystem services. Our findings contribute to the growing discussion around landscape-level financial incentive programs that depend on spatial coordination, highlighting the importance of farmers’ land holding size.

Rural underemployment and urbanisation: Insights from a 9-year panel from Malawi

Rural labour markets in Africa are frequently characterised by underemployment, with farmers unable to fully deploy throughout the year one of their most important assets—their labour. Using a nine-year panel data set on 1,407 working-age adults from rural Malawi, we document changes in rural underemployment over this period and how they are associated with urbanisation. Nearby urban growth is linked to increased hours worked in casual labour (ganyu) and in non-agricultural sectors, at the expense of work on the household farm. Improved urban access is also associated with a small increase in wage labour and, at the intensive margin, with hours supplied in household enterprises. We draw lessons from these results for policies, investments and interventions to leverage urban growth for rural development.

Wholesalers and the transformation of Myanmar’s maize value chains

Wholesalers of agricultural crops have historically received limited attention in the literature on agricultural development, which has a strongly productivist focus. When wholesalers are considered, they are often framed as exploitative, taking advantage of information asymmetries, market failures, and unequal power relations to extract heavy surpluses from farmers. However, there is a growing appreciation that wholesalers may play important roles in facilitating agricultural development and rural transformation. This paper evaluates wholesaler conduct and performance using a survey of 218 maize wholesalers in 12 of the major maize-growing and trading townships of South Shan State, Myanmar and the cities of Lashio and Muse in North Shan. Hybrid maize emerged very rapidly in Myanmar over the past two decades to become a major cash crop, supplying domestic animal feed mills and becoming one of Myanmar’s most important exports to China and Thailand. Wholesalers have been central to the development of this supply chain and the sector. Contrary to recent literature from Myanmar that has cast maize wholesalers as exploitative, the survey finds that the rapidly growing wholesaler segment of the maize value chain is highly competitive, rapidly changing with respect to technology, and functions efficiently. Farmers obtaining maize inputs from wholesalers in the form of tied output credit sell their maize at prevailing market rates. The emergence of clusters of maize wholesalers and allied actors such as third-party logistics services occurred spontaneously and symbiotically with the expansion of hybrid maize cultivation, and with each set of actors essential to the emergence of the others.

Economic impacts of large dams on downstream brickmaking in developing countries

Large dams have positive and negative impacts, including disrupting brickmaking on the floodplains downstream due to flow regulation and sediment reduction, affecting the supply of essential construction material, notably in developing countries. In this study, we introduce an analytical framework to assess the economywide effects of large dams on downstream brickmaking, focusing on Traditional Fired Clay Brick (TFCB). The framework includes three steps: characterizing the impacts on river flow and sediment load using river system modeling and secondary data, understanding the role of TFCB production in the economy based on survey and economic data, and quantifying the economywide impacts of changes in TFCB production using dynamic computable general equilibrium modeling. We demonstrate the functionality of the approach by conducting a case study of the impacts of the Grand Ethiopian Renaissance Dam (GERD) on the Sudanese economy due to changes in TFCB production by comparing two scenarios: “with GERD” and “no GERD.” Results show that Sudan’s accumulated (2023–2050) discounted (at 0.5% annually) Gross Domestic Product (GDP) at factor cost would decline by US$ 6 billion (−0.38%) due to a reduction in TFCB production. Consumer flexibility regarding brick types and the ability of alternative brick sources to fill the demand gap are key determinants of the impacts.

Evaluating the gendered credit constraints and uptake of an insurance-linked credit product among smallholder farmers in Kenya

Health or economics: Unpacking concern type and severity in the COVID-19 pandemic

Adapting to extreme weather conditions in a developing country: An economywide policy assessment from Malawi

Understanding pastoralist adaptations to drought via games and choice experiments: Field testing among Borana communities

Transhumant and nomadic pastoralism in arid and semi-arid spaces from West through Central, East, and Southern Africa is regarded as critical to regional system resilience and food security. Although pastoral systems are highly adapted and adaptive to uncertainty and change, recent decades of severe climatic events and increasing resource pressure are pushing pastoral systems to adopt novel norms and practices. Importantly, forage residue conservation and private forage enclosures are becoming important practices among herders and non-herders alike. As one part of considering the relevance of these responses in shaping the future trajectory of transhumant pastoralism, we developed a multi-part intervention for measuring and observing preferences in pastoral systems, including a novel experimental game called GreenReserve, and tested it in Borana communities in northern Kenya. We found that GreenReserve captured dimensions of human-environment dilemmas faced by pastoralists, and shifted preferences around herd size, losses, and the use of time, as measured through a repeated discrete choice experiment. We found game groups with younger players and with more female players to include more exploration of pastoral adaptations such as the use of grass reserves and the harvesting of grass, as well as to have less conflict within the game. We also observed both preferences as well as game strategy to shift along the length of the study: as the region moved further into a drought and failed short rainy season, players were more conscious of large herds, bad rainfall-year losses, and made better use of reserves in game play, though it was beyond the scope of the current study to determine causality. Future research is needed to unpack the mechanisms underlying the variations and possible shift in preferences and subsequently help identify entry points for targeted interventions (including agricultural extension services) to support pastoral communities in climate change adaptation. Further, these first fieldwork findings suggest two key dimensions for expanded work beyond this study to identify whether mixed methods approaches such as this aid experiential learning in agriculture contexts.

Papua New Guinea: Systematic analysis of domestic production and world market shocks

Using an economy-wide, multi-sectoral model, this study explores potential vulnerability of Papua New Guinea (PNG) to economic shocks and identifies factors that contribute most to economic uncertainty. Economic scenarios were developed using historical data on volatile domestic sectors (e.g., primary agriculture and hydropower electricity generation) and world prices of goods and services in which PNG trades. The Computable General Equilibrium (CGE) model of PNG was used to simulate a range of potential economic outcomes under these scenarios. In addition, data mining and machine learning methods were applied to quantify the contribution of each shock to the uncertainty of economic outcomes. Key findings suggest that Papua New Guinea’s economy is predominantly exposed to external risks, with world prices and foreign capital volatility together accounting for approximately two-thirds of the potential variation in GDP and three-fourths of the potential variation in private consumption, poverty, and undernourishment (domestic production volatility contributes the remaining one-third and one-fourth, respectively). The current structure of the PNG economy underpins these results. While agriculture is the most uncertain sector, it is relatively less important compared to the overall economy; export earnings from energy and metals, as well as volatile foreign exchange capital inflows, play a much more significant role in the country’s current economic risks. Understanding how potential shocks might impact various segments of the PNG economy and population is a critical first step in facilitating discussions on relevant risk mitigation strategies, such as increasing sectoral productivity or diversifying production away from high-risk sectors.

Employment impacts of agrifood system innovations and policies: A review of the evidence

The agrifood sector (AFS) constitutes about one-sixth of the global economy and is the world’s largest source of employment, supporting the livelihoods of most of the world’s poor and vulnerable people (Corong et al., 2024; Yi et al., 2024). In recent decades, global agricultural productivity has increased due to technological and institutional innovations. This has contributed to poverty reduction and improved food security. Despite these positive contributions, however, poverty remains widespread among rural and agrifood sector producers and workers. The challenge remains to address the constraints these producers and workers face and also enable more inclusive value chain development that would provide decent livelihoods and employment for those currently left behind. To this end, the CGIAR Initiative “Rethinking Food Markets and Value Chains for Inclusion and Sustainability” commissioned a meta study to identify knowledge gaps regarding the impacts of developing countries’ agrifood value chain (AVC) integration and modernization processes on employment and income sharing (Berdegué et al., 2023). This paper summarizes its key findings and draws conclusions for further research.

Climate change and the impact on taro in Papua New Guinea

In this paper we present a brief summary of recent historical climate of Papua New Guinea (PNG), finding that rainfall has been increasing greatly compared to pre-1995 levels, but that temperature has only been rising at a moderate rate. We then examine the 5 climate models used in this study from the Inter-governmental Panel on Climate Change (IPCC) / ISIMIP / CMIP3b, discovering one – IPSL – which best reflects the climate trends noted in PNG since 1995. The climate model projections show that temperature changes in PNG are expected to be less than most other places in the world and precipitation changes in PNG are projected to be higher than most other places in the world. Despite noting that IPSL seems to best represent climate changes observed thus far, we use all 5 climate models in the DSSAT crop model for taro, investigating how each climate model will lead to changes in taro yields at each half-degree pixel. In the aggregate, we find that the IPSL model leads to the greatest projected reduction in taro yield at -6.4% for the nation, with Southern region projected to have greater than 10% yield reduction for taro. Across the 5 climate models, the median across model results suggest only a 1.6% yield reduction, while the most optimistic model projects a 4.4% gain. Because of uncertainty across climate models and different impacts across regions, as well as potentially increasing climate variability which would lead to more extreme events including droughts and floods, we recommend developing a suite of options to help farmers navigate future climate uncertainty. For example, developing and testing crop varieties that would offer better yields whether the future is wetter or drier, as well as varieties that are less sensitive to temperature extremes. These could include new varieties of taro but might also include alternative crops and farming techniques designed to protect the plants during ad-verse climate events.

A band selection method for consumer-grade camera modification for UAV-based rapeseed growth monitoring

Near-infrared (NIR) modification of low-cost cameras is considered an important method to acquire high-resolution NIR images on an unmanned aerial vehicle (UAV) platform. However, few studies have examined filter selection methods to modify consumer-grade cameras for UAV-based agricultural crop monitoring. This study addresses a key challenge: how to balance imaging quality with spectral sensitivity when selecting filters for the modification of consumer-grade cameras. To this end, the normalized difference spectral index (NDSI) and the ratio spectral index (RSI) formulations were used to calculate the spectral indices (SIs) from all possible combinations of any two center wavelengths in UAV hyperspectral data. The contour maps of the coefficient of determination (R2) between the SIs and ground-measured rapeseed LAI were then computed to automatically generate the broadband combinations with optimized center wavelengths and effective bandwidths for selecting filters on camera modification. Results showed that a consumer-grade camera (Nikon D7000) modified by the selected filters had performance comparable with a multispectral camera (RedEdge Micasense 3), but slightly worse than a research-grade hyperspectral camera (Nano-Hyperspec®) in terms of SIs for LAI estimation. In addition, the high-resolution images from the modified camera were processed to obtain accurate crop plant height information. The SIs coupled with plant height from the modified camera (rRMSE = 18.1 % for field 1 and 14.3 % for field 2) was found to perform similar to, and in some cases even better than, those from the research-grade multispectral (rRMSE = 17.9 % and 16.7 % for the respective fields) and hyperspectral (rRMSE = 18.8 % for field 1) cameras for UAV-based LAI estimation. The findings from this study indicate that the proposed camera modification method is feasible and adaptable to agricultural crop monitoring. Thus, appropriately modified consumer-grade cameras can be a cost-effective replacement for research-grade sensors to rapidly and accurately assess crop growth status.

Comparison of gestational age assessment methods in the second and third trimesters: Evaluating alternative approaches against ultrasound in urban Burkina Faso

Background: Accurate determination of gestational age by way of ultrasound is challenging in resource-limited settings like Burkina Faso, leading to the use of alternative methods, though their accuracy and agreement remain poorly established. This practice leads to inadequate risk assessment during pregnancy and failure to identify preterm birth, potentially contributing to high neonatal mortality rates. The purpose of this study was to determine the agreement among alternative methods for gestational age estimation and the Alliance for Maternal and Newborn Health Improvement (AMANHI) method in Burkina Faso. Methods: Data were obtained from a prospective cohort study involving pregnant women in the second or third trimester in Bobo-Dioulasso to evaluate the agreement of last menstrual period (LMP), symphysis-fundal height (SFH), Dubowitz, Hadlock, and AMAHNI methods to estimate gestational age. The degree of agreement was assessed using the Bland–Altman method and intraclass correlation coefficients. The AMANHI method, validated for late pregnancy, was used as the reference standard. Results: A total of 768 pregnant women were included in the analysis. Plots showed a lack of agreement between the AMANHI method and all other methods, with 95% limits of agreement ranging from −7.6 to +9.8 weeks. Additionally, the incidence of preterm birth was consistently higher when assessed using the alternative methods compared with the AMANHI method. Conclusions: The clinical methods (SFH, LMP, Dubowitz) disagree with the ultrasound methods (AMANHI, Hadlock), but the ultrasound methods produce more similar results. The routine application of other methods is likely to result in an overestimation of preterm birth incidence compared with AMANHI. These findings highlight the urgent need to improve access to obstetric ultrasound and to provide comprehensive training in the application of the AMANHI method for accurate late-term gestational age estimation in Burkina Faso.

Seeds of change: The impact of Ethiopia’s direct seed marketing approach on smallholders’ seed purchases and productivity

Several factors contribute to the limited use of improved seed varieties in Ethiopia. Among those, on the supply side, is the restricted availability of seeds in the volume, quality, and timeliness required by farmers, partly due to inadequate public and private investment in the sector. Beginning in 2011, the Government of Ethiopia introduced a novel experiment—the direct seed marketing approach—to reduce some of the centralized, state-run attributes of the country’s seed market and rationalize the use of public resources. Direct seed marketing was designed to incentivize private and public seed producers to sell directly to farmers rather than through the state apparatus. This study is the first quantitative evaluation of the impact of direct seed marketing on indicators of a healthy seed system: access to quality seeds and farm-level productivity. Using a quasi-experimental difference-in-differences approach suitable to handling variation in treatment timing, the study finds that direct seed marketing led to an increase of 15 percentage points in the proportion of farmers purchasing maize seed, an increase of 45 percent in the quantity of maize seed purchased per hectare, and an increase of 18 percent in maize yield. However, there are differences across crops, with the effects of direct seed marketing on wheat seed purchases and yields being statistically insignificant. These crop-specific differences in performance are likely explained by differences in the reproductive biology of maize (particularly maize hybrids) and wheat, which tend to incentivize commercial activity in hybrid maize seed markets more than in self-pollinating wheat or open-pollinated maize markets. These differences suggest a need for nuanced policy responses, institutional arrangements, and market development strategies to accelerate the adoption of improved varieties.

Maternal balanced energy-protein supplementation reshapes the maternal gut microbiome and enhances carbohydrate metabolism in infants: A randomized controlled trial

Balanced energy-protein (BEP) supplementation during pregnancy and lactation can improve birth outcomes and infant growth, with the gut microbiome as a potential mediator. The MISAME-III randomized controlled trial (ClinicalTrial.gov: NCT03533712) assessed the effect of BEP supplementation, provided during pregnancy and the first six months of lactation, on small-for-gestational age prevalence and length-for-age Z-scores at six months in rural Burkina Faso. Nested within MISAME-III, this sub-study examines the impact of BEP supplementation on maternal and infant gut microbiomes and their mediating role in birth outcomes and infant growth. A total of 152 mother-infant dyads (n = 71 intervention, n = 81 control) were included for metagenomic sequencing, with stool samples collected at the second and third trimesters, and at 1–2 and 5–6 months postpartum. BEP supplementation significantly altered maternal gut microbiome diversity, composition, and function, particularly those with immune-modulatory properties. Pathways linked to lipopolysaccharide biosynthesis were depleted and the species Bacteroides fragilis was enriched in BEP-supplemented mothers. Maternal BEP supplementation also accelerated infant microbiome changes and enhanced carbohydrate metabolism. Causal mediation analyses identified specific taxa mediating the effect of BEP on birth outcomes and infant growth. These findings suggest that maternal supplementation modulates gut microbiome composition and influences early-life development in resource-limited settings.

South Asia Nutrition Knowledge Initiative: Abstract digest March 2025

In this fifth edition of the South Asia Nutrition Knowledge Initiative’s Abstract Digest, we present a diverse body of global, regional, and country-level evidence that, collectively, enhances our understanding of the multifaceted nature of malnutrition, spanning a broad spectrum of outcomes, determinants, and policy responses. Among the global and regional articles featured, these focus on key challenges and advancements in nutrition, gender, and health equity. Topics include gender-transformative interventions for adolescents, progress toward global nutrition targets, the links between adolescent pregnancy and anemia, optimal iron supplementation strategies, the applicability of a single child growth standard, and the need for a paradigm shift in anemia assessment. Additionally, discussions highlight shifting power dynamics in global health, inequalities in food environment research, the continuum of child development from conception to early life, and defining healthy diets through a joint FAO-WHO perspective. Other studies of interest include the latest research on maternal and child healthcare trends and inequality, anemia and micronutrient deficiencies, and malnutrition in children and adolescents, with a focus on Bangladesh, Nepal, and India. These studies examine determinants ranging such as marriage, education, and women’s empowerment to maternal and child health outcomes. They also explore the intersection of women’s work and child nutrition before expanding to broader dietary behaviors and the rising burden of non-communicable diseases, providing a comprehensive view of key nutrition and health challenges. Please scroll down to explore the abstracts of these studies. If you received this Abstract Digest via forwarding, we invite you to subscribe for future editions. Happy reading!

Production and consumption traits and the adoption of improved maize varieties: Evidence from seed sample packs and cooking demonstrations

In developing countries, semi-subsistence farmers typically assume dual roles as both consumers and producers of the same crops, which shape their adoption decisions as they balance household food security with market-driven incentives. This study, conducted in eastern Uganda, employs a field experiment with two intervention arms to assess the relative importance of these factors in farmers’ decisions to adopt improved maize seed varieties. The first intervention focuses on production traits, distributing free sample packs of an improved hybrid maize variety to showcase benefits such as higher yields, pest resistance, and drought tolerance. The second intervention emphasizes consumption traits, offering cooking demonstrations and blind taste tests using flour from the same improved maize variety to highlight its taste, texture, and ease of preparation. Our findings reveal that while seed sample packs positively influenced farmers’ perceptions of both production and consumption traits, cooking demonstrations primarily affected perceptions of consumption qualities. We find some evidence that the cooking demonstrations and tasting sessions significantly boosted adoption of the improved maize seed variety promoted by the intervention. However, farmers who received seed sample packs tended to recycle the harvested grain as seed in subsequent seasons, thereby crowding out fresh seed purchases. This practice led to productivity losses, suggesting that the seed trial packs did not translate into lasting improvements in food security or increased market participation.