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With research staff from more than 60 countries, and offices across the globe, IFPRI provides research-based policy solutions to sustainably reduce poverty and end hunger and malnutrition in developing countries.

researcher spotlight

Liangzhi You

Liangzhi You is a Senior Research Fellow and theme leader in the Foresight and Policy Modeling Unit, based in Washington, DC. His research focuses on climate resilience, spatial data and analytics, agroecosystems, and agricultural science policy. Gridded crop production data of the world (SPAM) and the agricultural technology evaluation model (DREAM) are among his research contributions. 

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IFPRI currently has more than 600 employees working in over 80 countries with a wide range of local, national, and international partners.

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experts

John M. Ulimwengu

Senior Research Fellow

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Bio

John Ulimwengu is a Senior Research Fellow in the Development Strategies and Governance Unit who currently works on food systems mapping in selected African countries. His research interests include food systems dynamics, resilience, and spatial typology for food and nutrition security. Since 2007, John has been involved in strategic research on the transformation of food systems in Africa under the Comprehensive Africa Agriculture Development Program (CAADP) agenda and has served as the Africa-wide coordinator of the Regional Strategic Analysis and Knowledge Support System (ReSAKSS). He has codeveloped an interactive spatial typology tool for food and nutrition security that is being used in several countries. He holds a PhD in agricultural economics and a master’s degree in economics from Ohio State University, as well as a master’s degree in development economics from Williams College.

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Publications

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Working Paper

Food system financing vulnerability index

2024Ulimwengu, John M.
Details

Food system financing vulnerability index

Food systems are integral to ensuring access to sustainable healthy diets for all, thereby supporting public health, livelihoods, and environmental sustainability. However, these systems are increasingly vulnerable to a range of shocks and stressors, from economic downturns and financial constraints to the impacts of cli mate change and pandemics. One of the most critical determinants of food system resilience is the ability to effectively manage financing vulnerabilities. Financing vulnerability refers to the susceptibility of food system components to performance degradation due to inadequate, inefficient, or uneven allocation of financial re sources. Addressing this issue is paramount for enhancing the system’s capacity to withstand and recover from disruptions while maintaining functionality.

Year published

2024

Authors

Ulimwengu, John M.

Citation

Ulimwengu, John M. 2024. Food system financing vulnerability index. Technical Note December 2024. Washington, DC: International Food Policy Research Institute.

Keywords

Food Systems; Healthy Diets; Sustainability; Financing; Vulnerability

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

Foresight

Record type

Working Paper

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Working Paper

Rethinking the measurement of resilience for food and nutrition security

2024Ulimwengu, John M.
Details

Rethinking the measurement of resilience for food and nutrition security

This paper presents a novel framework for assessing resilience in food systems, focusing on three dynamic metrics: return time, magnitude of deviation, and recovery rate. Traditional resilience measures have often relied on static and composite indicators, creating gaps in understanding the complex responses of food systems to shocks. This framework addresses these gaps, providing a more nuanced assessment of resilience in agrifood sectors. It highlights how integrating dynamic metrics enables policymakers to design tailored, sector-specific interventions that enhance resilience. Recognizing the data intensity required for these metrics, the paper indicates how emerging satellite imagery and advancements in artificial intelligence (AI) can make data collection both high-frequency and location-specific, at a fraction of the cost of traditional methods. These technologies facilitate a scalable approach to resilience measurement, enhancing the accuracy, timeliness, and accessibility of resilience data. The paper concludes with recommendations for refining resilience tools and adapting policy frameworks to better respond to the increasing challenges faced by food systems across the world.

Year published

2024

Authors

Ulimwengu, John M.

Citation

Ulimwengu, John M. 2024. Rethinking the measurement of resilience for food and nutrition security. IFPRI Discussion Paper 2300. Washington, DC: International Food Policy Research Institute.

Keywords

Food Security; Nutrition Security; Policy Innovation; Shock; Resilience

Language

English

Access/Licence

Open Access

Source

Source record

Record type

Working Paper

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Journal Article

Building resilience through integrated assistance: Evidence from the Democratic Republic of the Congo

2024Baoubadi, Atozou; d’Errico, Marco; Ulimwengu, John M.
Details

Building resilience through integrated assistance: Evidence from the Democratic Republic of the Congo

Despite growing investment in resilience-building programs in conflict zones, limited empirical evidence exists on the effectiveness of integrated interventions in such contexts. This study examines the impact of a comprehensive resilience-building program in North Kivu, Democratic Republic of the Congo (2017-2019), focusing on community infrastructure, farmer associations, and land access. Using propensity score matching and difference-in-differences analysis of primary panel data from 1,643 households, our research reveals that integrated interventions significantly improved households’ resilience capacity, primarily through enhanced market access and strengthened collective marketing systems. The program yielded a statistically significant positive impact on beneficiaries’ access to land and participation in community associations, though impacts on agricultural production and food security were limited. These findings highlight the importance of context-specific, multifaceted approaches in enhancing resilience in areas facing protracted crises, particularly emphasizing market access and social cohesion. Our results provide valuable empirical evidence for policymakers and development practitioners, suggesting that resilience-building in conflict zones requires sustained, locally-adapted interventions that prioritize market linkages and community networks alongside traditional agricultural support. JEL Classification Codes: C01, C23, D04

Year published

2024

Authors

Baoubadi, Atozou; d’Errico, Marco; Ulimwengu, John M.

Citation

Baoubadi, Atozou; d’Errico, Marco; and Ulimwengu, John M. 2024. Building resilience through integrated assistance: Evidence from the Democratic Republic of the Congo. African Journal of Economic Review 12(4): 167-190. https://www.ajol.info/index.php/ajer/article/view/284186

Keywords

Congo, Democratic Republic of; Africa; West and Central Africa; Sub-saharan Africa; Conflicts; Food Security; Resilience; Shock; Impact Assessment; Communities

Language

English

Access/Licence

Open Access

Source

Source record

Project

Fragility, Conflict, and Migration

Record type

Journal Article

Events

Africa’s Food Systems Forum (AGRF) 2023 Summit
IFPRI at External Event

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September 5 to 8, 2023

Africa’s Food Systems Forum (AGRF) 2023 Summit

Event: September 5, 2023 – 3:00 AM to September 8, 2023 – 7:30 AM EDT. IFPRI is participating in Africa’s Food Systems Forum (AGRF) 2023 Summit.

IFPRI’s 2023 Global Food Policy Report: Rethinking Food Crisis Responses – Considerations for Africa
Series/Special Event

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June 22, 2023, 9:00 – 10:30 am

IFPRI’s 2023 Global Food Policy Report: Rethinking Food Crisis Responses – Considerations for Africa

Virtual Event: June 22, 2023 – 9:00 AM to 10:30 AM EDT. The virtual Africa discussion will feature a distinguished panel of experts to discuss the report’s key findings and recommendations and implications for Africa and its regions.

Taking Stock of Africa’s Agrifood Processing Sector
IFPRI Policy Seminar

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February 9, 2023, 8:00 – 9:30 am

Taking Stock of Africa’s Agrifood Processing Sector

Virtual Event: February 9, 2023 – 8:00 AM- 9:30 AM EST. During this event key research findings and policy recommendations of the 2022 ATOR will be presented and discussed by a distinguished panel of representatives from academia, the private sector, and international and regional organizations engaged in strengthening Africa’s agri-food processing sector.

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News

September 06, 2023 | In the News

Unpacking the 2023 Africa agriculture assessment report (CNBC Africa) 

CNBC Africa interviewed John Ulimwengu, IFPRI Senior Research Fellow and the technical editor and lead researcher of the Africa Agriculture Status Report 2023, launched on September 6 at the Africa Food Systems Forum (AGRF). .  The Report titled “Empowering Africa’s Food Systems for the Future” highlights the ways in which Africa is uniquely positioned to redefine its future and […]

August 24, 2018 | In the News

Congo’s maiden agro-industrial park isn’t perfect, but it isn’t a failure (DEVEX)

Devex published an op-ed by IFPRI Senior Research Fellow John Ulimwengu, who detailed Congo’s move towards structural transformation in the agricultural sector with the establishment of their first special economic zone in Bukanga Lonzo.  Created to boost production, encourage private and foreign capital investments, and increase agricultural exports, the agrobusiness park is home to tremendous […]

May 22, 2018 | In the News

Africa’s green revolution stumbles at Congo project to solve food shortages (Reuters)

Exploring reasons behind failure of a Congolese agro-industrial project, Reuters interviews John Ulimwengu. 

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