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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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Development Strategies and Governance

Aboubacar Hema

Research Analyst

Bio

Aboubacar Hema is a Research Analyst in the Development Strategies and Governance Unit. He is a data scientist, statistician, and software developer. Prior to joining IFPRI, Aboubacar worked as a data analyst with the International Organization for Migration (IOM), where he successfully implemented and analyzed the MHPSS surveys (round 1-3) as well as the endline surveys for Senegal, Guinea, Nigeria, and Gambia. He also worked as a statistician with the Senegalese Institute for Agricultural Research (ISRA-BAME), as well as with the Consortium for Economic and Social Research (CRES), where he was involved in the design, implementation, and analysis of various household surveys, and as an R developer (sdmApp package) with the French Agricultural Research Center for International Development (CIRAD).

Aboubacar earned a MicroMaster in Statistics and Data Science at MIT, where he learned the foundations of data science, statistics, and machine learning, using big data and probabilistic modelling to extract meaningful information for decision-making. He graduated from the National School of Statistics and Economic Analysis in Dakar and has a license 3 in Computer Science from the University of Ouagadougou, Burkina Faso.

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Publications

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How did households in Mali cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset

2024Marivoet, Wim; Hema, Aboubacar
Details

How did households in Mali cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset

The objective of this analysis is to gain more insight into the coping behavior of households in Mali when facing covariate shocks and stressors of different kinds. To achieve this, we rely on a unique dataset, which consists of eleven waves of cross-sectional household data combined with an extensive list of shock indicators compiled from external sources. Apart from a detailed profiling of both dimensions, this analysis relies on a data mining algorithm to uncover interesting associations between covariate shocks and coping strategies. Among the main findings of this study is the pronounced diversity in shock and coping profiles observed across time and place, which in turn complicates any straightforward identification of common and consistent patterns in household coping behavior. This said, political violence has increased over time; food prices hiked in 2018, 2022 and 2023; rainy seasons were underperforming in 2021 and 2023; extreme weather events reached a peak in 2021; while the Gao region in 2023 suffered from all five shock domains at the same time. While fewer households resorted to coping over time, those who did combined slightly more strategies – which either points to increased inequality or generalized depletion of coping potential. Further, poor and erratic weather conditions appear to be important triggers for households to disinvest in farming and livestock activities, with food secure people being more inclined to resort to emergency coping when shocks prevail. This analysis also very much reveals the need for additional research on the same integrated and enhanced dataset.

Year published

2024

Authors

Marivoet, Wim; Hema, Aboubacar

Citation

Marivoet, Wim; and Hema, Aboubacar. 2024. How did households in Mali cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset. Fragility, Conflict, and Migration Initiative Report. CGIAR.

Country/Region

Mali

Keywords

Western Africa; Households; Shock; Violence; Conflicts; Food Prices; Extreme Weather Events; Farming Systems; Livestock; Food Security

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

Fragility, Conflict, and Migration

Record type

Report

Resource thumbnail

Report

How did households in Chad cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset

2024Marivoet, Wim; Hema, Aboubacar
Details

How did households in Chad cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset

The objective of this analysis is to gain more insight into the coping behavior of households in Chad when facing covariate shocks and stressors of different kinds. To achieve this, we rely on a unique dataset, which consists of eleven waves of cross-sectional household data combined with an extensive list of shock indicators compiled from external sources. Apart from a detailed profiling of both dimensions, this analysis relies on a data mining algorithm to uncover interesting associations between covariate shocks and coping strategies. Among the main findings of this study is the pronounced diversity in shock and coping profiles observed across time and place, which in turn complicates any straightforward identification of common and consistent patterns in household coping behavior. This said, political violence has increased until 2022 and then fell back; food prices hiked in 2022 and 2023; rainy seasons were underperforming in 2021 and 2023; extreme weather events reached a peak in 2022; while four departments in 2023 suffered from four distinct shock domains at the same time. While coping prevalence and coping intensity are roughly aligned over time, they are only weakly correlated in geographical terms in 2023. Further, the biggest change in people’s coping behavior involves keeping children from school when confronted with severe political violence coupled with severe climate change and light seasonal performance shocks – while many distinct combinations apply for different subpopulations. Finally, this analysis also very much reveals the need for additional research on the same integrated and enhanced dataset.

Year published

2024

Authors

Marivoet, Wim; Hema, Aboubacar

Citation

Marivoet, Wim; and Hema, Aboubacar. 2024.How did households in Chad cope with covariate shocks between 2018 and 2023? Exploration of a unique dataset. Fragility, Conflict, and Migration Initiative Report. CGIAR.

Country/Region

Chad

Keywords

Africa; Middle Africa; Shock; Households; Violence; Conflicts; Food Prices; Extreme Weather Events; Schools; Climate Change; Food Security

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

Fruit and Vegetables for Sustainable Healthy Diets

Record type

Report

Resource thumbnail

Report

Integrated and enhanced datasets on food security and household coping strategies in the G5 Sahel Countries (2018-2023)

2024Marivoet, Wim; Hema, Aboubacar
Details

Integrated and enhanced datasets on food security and household coping strategies in the G5 Sahel Countries (2018-2023)

This report describes the methodology and output behind the integration and enhancement of nationally representative household surveys on food security and coping strategies implemented in the G5 Sahel countries between 2018 and 2023. Whereas the data integration process involves the harmonization of variables across multiple cross-sectional surveys, the enhancement procedure focuses on adding shock data on multiple dimensions of political violence, food price anomalies, and climate- and weather-related events. Despite shortcomings in data quality and exhaustivity, the resulting datasets represent a unique playground to study the interaction between shocks and stressors on the one hand and household coping strategies and their impact on food security on the other hand.

Year published

2024

Authors

Marivoet, Wim; Hema, Aboubacar

Citation

Marivoet, Wim; and Hema, Aboubacar. 2024. Integrated and enhanced datasets on food security and household coping strategies in the G5 Sahel Countries (2018-2023). Initiative on Fragility, Conflict, and Migration – Metadata report. Washington, DC: International Food Policy Research Institute.

Country/Region

Burkina Faso; Chad; Mali; Mauritania; Niger

Keywords

Africa; West and Central Africa; Sahel; Climate; Food Security; Households; Violence

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

Fragility, Conflict, and Migration

Record type

Report

Research

Topics/Countries