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Who we are

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

Foresight and Policy Modeling

Keith Wiebe

Senior Research Fellow

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Bio

Keith Wiebe is a Senior Research Fellow in the Foresight and Policy Modeling Unit and Lead of the CGIAR Research Initiative on Foresight. In addition to foresight, his areas of particular interest include climate change, natural resource management, agricultural productivity, and food security. Prior to joining IFPRI in 2013, he was Deputy Director of the Agricultural Development Economics Division of the United Nations Food and Agriculture Organization (FAO) in Rome, where he managed a program of economic research and policy analysis for food security and sustainable development, and helped coordinate preparation of FAO’s annual flagship reports on the State of Food and Agriculture and the State of Food Insecurity in the World. Previously, he was Deputy Director of the Resource and Rural Economics Division of the US Department of Agriculture’s Economic Research Service in Washington, DC. He received his BA in Economics from Carleton College, and his MA and PhD in Agricultural Economics from the University of Wisconsin-Madison.

Publications

Publications

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Report

The International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT): Model documentation for version 3.6

2024
Robinson, Sherman; Dunston, Shahnila; Mishra, Abhijeet; Sulser, Timothy B.; Mason-D’Croz, Daniel; Robertson, Richard D.; Cenacchi, Nicola; Thomas, Timothy S.; Zhu, Tingju; Gueneau, Arthur
…more Pitois, Gauthier; Wiebe, Keith D.; Rosegrant, Mark W.
Details

The International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT): Model documentation for version 3.6

The International Food Policy Research Institute’s IMPACT model is a robust tool for analyzing global and regional challenges in food, agriculture, and natural resources. Continuously updated and refined, IMPACT version 3.6 is the latest update to the model for continuously improving the treatment of complex issues, including climate change, food security, and economic development. IMPACT 3.6 multimarket model integrates climate, crop simulation, and water models into a comprehensive system, providing decision-makers with a flexible platform to assess the potential impacts of various scenarios on biophysical systems, socioeconomic trends, technologies, and policies.

Year published

2024

Authors

Robinson, Sherman; Dunston, Shahnila; Mishra, Abhijeet; Sulser, Timothy B.; Mason-D’Croz, Daniel; Robertson, Richard D.; Cenacchi, Nicola; Thomas, Timothy S.; Zhu, Tingju; Gueneau, Arthur; Pitois, Gauthier; Wiebe, Keith D.; Rosegrant, Mark W.

Citation

Robinson, Sherman; Dunston, Shahnila; Mishra, Abhijeet; Sulser, Timothy B.; Mason-D’Croz, Daniel; Robertson, Richard D.; Cenacchi, Nicola; et al. 2024. The International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT): Model documentation for version 3.6. Modeling Systems Technical Paper 1. Washington, DC: International Food Policy Research Institute. https://hdl.handle.net/10568/148953

Keywords

Agriculture; Commodities; Policy Analysis; Policy Innovation; Models

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

Foresight

Record type

Report

Resource thumbnail

Journal Article

Food and nutrition security under changing climate and socioeconomic conditions

2024Rosegrant, Mark W.; Sulser, Timothy B.; Dunston, Shahnila; Mishra, Abhijeet; Cenacchi, Nicola; Gebretsadik, Yohannes; Robertson, Richard D.; Thomas, Timothy S.; Wiebe, Keith D.
Details

Food and nutrition security under changing climate and socioeconomic conditions

Food and nutrition security have become increasingly critical concerns for policy makers given that the slow progress on eliminating these challenges has reversed in recent years, with an increase in the number of hungry people by 122 million (20 percent) between 2019 and 2022. In addition to rebuilding in the aftermath of the COVID-19 pandemic, the global food system faces inter-related challenges from climate change, trade disruptions, increasing scarcity of water and land, environmental degradation, and evolving food demand patterns, among other factors. This paper assesses prospects to 2050 for food and nutrition security with a focus on low- and middle-income countries around the world in the context of these broader food system changes. Measures of food security presented here include per capita food and kilocalorie availability, the number and prevalence of hungry people, and micronutrient availability. Projected outcomes are assessed using the latest version of the International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) framework, a modeling system that combines information from climate models, crop simulation models, and river basin level hydrological and water supply and demand models linked to a global, partial equilibrium, multimarket agriculture sector model.

Year published

2024

Authors

Rosegrant, Mark W.; Sulser, Timothy B.; Dunston, Shahnila; Mishra, Abhijeet; Cenacchi, Nicola; Gebretsadik, Yohannes; Robertson, Richard D.; Thomas, Timothy S.; Wiebe, Keith D.

Citation

Rosegrant, Mark W.; Sulser, Timothy B.; Dunston, Shahnila; Mishra, Abhijeet; Cenacchi, Nicola; et al. 2024. Food and nutrition security under changing climate and socioeconomic conditions. Global Food Security 41: 100755. https://doi.org/10.1016/j.gfs.2024.100755

Keywords

Food Security; Nutrition Security; Climate Change; Socioeconomic Aspects; Modelling

Language

English

Access/Licence

Open AccessCC-BY-NC-ND-4.0

Links

https://doi.org/10.1016/j.gfs.2024.100755 Source record

Project

Foresight

Record type

Journal Article

Resource thumbnail

Journal Article

The state of food systems worldwide in the countdown to 2030

2023
Schneider, Kate R.; Fanzo, Jessica; Haddad, Lawrence; Herrero, Mario; Moncayo, Jose Rosero; Herforth, Anna; Remans, Roseline; Guarin, Alejandro; Resnick, Danielle; Covic, Namukolo M.
…more Béné, Christophe; Cattaneo, Andrea; Aburto, Nancy; Ambikapathi, Ramya; Aytekin, Destan; Barquera, Simon; Battersby, Jane; Beal, Ty; Molina, Paulina Bizzoto; Cafiero, Carlo; Campeau, Christine; Caron, Patrick; Conforti, Piero; Damerau, Kerstin; Girolamo, Michael di; DeClerck, Fabrice A.J.; Dewi, Deviana; Elouafi, Ismahane; Fabi, Carola; Foley, Pat; Frazier, Tyler J.; Gephart, Jessica A.; Golden, Christopher D.; Fischer, Carlos Gonzalez; Hendriks, Sheryl; Honorati, Maddalena; Jikun Huang; Kennedy, Gina; Laar, Amos; Lal, Rattan; Lidder, Preetmoninder; Loken, Brent; Marshall, Quinn; Masuda, Yuta J.; McLaren, Rebecca; Miachon, Lais; Muñoz, Hernán; Nordhagen, Stella; Qayyum, Naina; Saisana, Michaela; Suhardiman, Diana; Sumaila, U. Rashid; Cullen, Maximo Torero; Tubiello, Francesco N.; Vivero-Pol, Jose-Luis; Webb, Patrick; Wiebe, Keith
Details

The state of food systems worldwide in the countdown to 2030

This Analysis presents a recently developed food system indicator framework and holistic monitoring architecture to track food system transformation towards global development, health and sustainability goals. Five themes are considered: (1) diets, nutrition and health; (2) environment, natural resources and production; (3) livelihoods, poverty and equity; (4) governance; and (5) resilience. Each theme is divided into three to five indicator domains, and indicators were selected to reflect each domain through a consultative process. In total, 50 indicators were selected, with at least one indicator available for every domain. Harmonized data of these 50 indicators provide a baseline assessment of the world’s food systems. We show that every country can claim positive outcomes in some parts of food systems, but none are among the highest ranked across all domains. Furthermore, some indicators are independent of national income, and each highlights a specific aspiration for healthy, sustainable and just food systems. The Food Systems Countdown Initiative will track food systems annually to 2030, amending the framework as new indicators or better data emerge.

Year published

2023

Authors

Schneider, Kate R.; Fanzo, Jessica; Haddad, Lawrence; Herrero, Mario; Moncayo, Jose Rosero; Herforth, Anna; Remans, Roseline; Guarin, Alejandro; Resnick, Danielle; Covic, Namukolo M.; Béné, Christophe; Cattaneo, Andrea; Aburto, Nancy; Ambikapathi, Ramya; Aytekin, Destan; Barquera, Simon; Battersby, Jane; Beal, Ty; Molina, Paulina Bizzoto; Cafiero, Carlo; Campeau, Christine; Caron, Patrick; Conforti, Piero; Damerau, Kerstin; Girolamo, Michael di; DeClerck, Fabrice A.J.; Dewi, Deviana; Elouafi, Ismahane; Fabi, Carola; Foley, Pat; Frazier, Tyler J.; Gephart, Jessica A.; Golden, Christopher D.; Fischer, Carlos Gonzalez; Hendriks, Sheryl; Honorati, Maddalena; Jikun Huang; Kennedy, Gina; Laar, Amos; Lal, Rattan; Lidder, Preetmoninder; Loken, Brent; Marshall, Quinn; Masuda, Yuta J.; McLaren, Rebecca; Miachon, Lais; Muñoz, Hernán; Nordhagen, Stella; Qayyum, Naina; Saisana, Michaela; Suhardiman, Diana; Sumaila, U. Rashid; Cullen, Maximo Torero; Tubiello, Francesco N.; Vivero-Pol, Jose-Luis; Webb, Patrick; Wiebe, Keith

Citation

Kate R. Schneider; Fanzo, Jessica; Resnick, Danielle; Covic, Namukolo; Marshall, Quinn; Wiebe, Keith; et al. 2023. The state of food systems worldwide in the countdown to 2030. Nature Food 4: 1090–1110. https://doi.org/10.1038/s43016-023-00885-9

Keywords

Diet; Food Systems; Health; Nutrition; Poverty; Sustainability; Sustainable Development Goals

Language

English

Access/Licence

Open AccessCC-BY-4.0

Links

https://doi.org/10.1038/s43016-023-00885-9 Source record

Project

Foresight

Record type

Journal Article

Blogs

How do we estimate the consequences of global inaction on genetic diversity conservation, exchange, and use?
IFPRI Blog
 | 
September 26, 2019

How do we estimate the consequences of global inaction on genetic diversity conservation, exchange, and use?

By Luigi Guarino, David Spielman, and Keith Wiebe

Securing billions of dollars in funding and keeping momentum behind essential crop diversity efforts – it's complicated. A discussion.

Can boosting yields slow the global palm oil expansion and ease its environmental impacts?
IFPRI Blog
 | 
August 26, 2019

Can boosting yields slow the global palm oil expansion and ease its environmental impacts?

By Keith Wiebe and Maria Garcia

Modeling shows a way to address a major contributor to deforestation and climate change.

Ambitious steps to control climate change may pose food security risks in the near term
IFPRI Blog
 | 
November 27, 2018

Ambitious steps to control climate change may pose food security risks in the near term

By Keith Wiebe and Timothy Sulser

Essential climate mitigation efforts, such as carbon taxes, may create problems for the food system that should be addressed, a study shows.

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Events

How should governments respond to crises? Rapid response using RIAPA modeling system
IFPRI Program/Country Event

 | 

August 13, 2024, 9:30 – 10:30 am

How should governments respond to crises? Rapid response using RIAPA modeling system

IFPRI’s foresight modeling systems cover food, land, and water systems across the world’s poorest and most food insecure geographies. Thanks to longstanding investments in these systems, IFPRI is uniquely positioned to provide rapid analysis of the impacts of global or domestic crises on agrifood systems, poverty, and food security at global, regional, national, or subnational […]

China Agricultural Sector Development Report 2024 and IFPRI 2024 Global Food Policy Report Launch
Series/Special Event

 | 

June 7, 2024, 9:00 – 11:30 am

China Agricultural Sector Development Report 2024 and IFPRI 2024 Global Food Policy Report Launch

Hybrid Event: June 7, 2024 – 9:00 AM to 11:30 AM +08. The China Agricultural Sector Development Report 2024 (CASDR) and IFPRI 2024 Global Food Policy Report (GFPR) hybrid launch event will feature keynote speakers as well as presentations on the overview of the GFPR’s and CASDR’s findings.

Launching the Global Foresight for Food and Agriculture Tool
IFPRI Program/Country Event

 | 

December 18, 2019, 10:00 – 11:00 am

Launching the Global Foresight for Food and Agriculture Tool

Join the Food Security Portal (FSP), International Food Policy Research Institute (IFPRI), and CGIAR Research Program on Policies, Institutions, and Markets (PIM) in the launch of the global foresight tool Impacts of Alternative Investment Scenarios. The tool was recently developed by IFPRI’s IMPACT model team and the FSP. The Global Foresight tool provides researchers and […]

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News

December 12, 2023 | Press Release

Re-imagining Africa’s food security within the context of climate change and ecological sustainability

This press-release was initially published by WWF on December 12, 2023.  WWF, the Alliance of Bioversity International and CIAT, IFPRI, CGIAR, and AfDB have released a new report to help African countries to achieve food security and implement climate and nature commitments. The report is based on a joint study, executed with the technical support […]

November 26, 2023 | In the News

Scientists are racing to protect grass from climate change. Your cheap burger is at stake (Wall Street Journal)

Wall Street Journal (Australia) quotes Keith Wiebe, IFPRI senior research fellow, in an article analyzing how heat waves and drought are threatening pasture on farms worldwide.  “If pasture becomes less productive, prices would be expected to rise, not just for meat, wool and dairy products but also for cereals and other food commodities that would […]

December 14, 2022 | Press Release

Pollination loss removes healthy foods from global diets, increases chronic diseases causing excess deaths 

Boston, MA, USA: Inadequate pollination has led to a 3-5% loss of fruit, vegetable, and nut production and an estimated 427,000 excess deaths annually from lost healthy food consumption and associated diseases, including heart disease, stroke, diabetes, and certain cancers, according to research led by Harvard T.H. Chan School of Public Health. The study, published on December […]

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