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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.

Erick Boy

researcher spotlight

Erick Boy

Erick Boy is the Chief Nutritionist in the HarvestPlus section of the Innovation Policy and Scaling Unit. As head of nutrition for the HarvestPlus Program since 2008, he has led research that has generated scientific evidence on biofortified staple crops as efficacious and effective interventions to help address iron, vitamin A, and zinc deficiency in sub-Saharan Africa, Latin America, and South Asia.

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What we do

Since 1975, IFPRI’s research has been informing policies and development programs to improve food security, nutrition, and livelihoods around the world.

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Where we work

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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The Flanders Department of Foreign Affairs is responsible for handling all of the Government of Flanders’ international relations. This includes organizing Flanders’ international and European activities, as well as relations with foreign governments, the European Union and international organizations.

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Projects

Pluralistic Extension System in Malawi

Pluralistic Extension System in Malawi

Launched in 2016, this 3-year evidence-based policy support project, Assessing and Enhancing the Capacity, Performance and Impact of the Pluralistic Agricultural Extension System in Malawi,……

Publications

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Journal Article

Maize yield responsiveness and profitability of fertilizer: New survey evidence from six African countries

2025Ragasa, Catherine; Takeshima, Hiroyuki; Asante, Seth; Amare, Mulubrhan; Ma, Ning; Olanrewaju, Opeyemi; Duchoslav, Jan
Details

Maize yield responsiveness and profitability of fertilizer: New survey evidence from six African countries

Enhancing maize productivity growth is pivotal for revolutionizing the agrifood system in Africa, with inorganic fertilizer serving as a fundamental input for catalyzing this progress. However, concerns are mounting about the low and decreasing yield response and profitability of inorganic fertilizer use, particularly in Sub-Saharan Africa. This study aims to refine yield response and profitability models by incorporating recent data from nationally representative and panel datasets spanning six countries. Most countries exhibited low nitrogen yield responsiveness (4–7 kg), while Ghana and Uganda showed higher responsiveness (15–20 kg) per additional 1 kg of nitrogen. Analysis of fertilizer-to-maize price ratios from 2010 to 2023 showed a downward trend, with spikes in 2022 in Ghana, Malawi, Nigeria, and Tanzania. Overall, except for those years, the data suggest a trend of increasingly favorable price incentives for fertilizer use. Ethiopia, Tanzania, and Uganda experienced declines in the fertilizer-to-maize price ratio. Increasing inorganic fertilizer use would be profitable in Ethiopia, Ghana, Nigeria, and Uganda at current market prices, but not in Malawi or Tanzania. Subsidies in Malawi and Tanzania have boosted profitability, but these may not be necessary in Ghana, Nigeria, or Uganda, which already have favorable price incentives; Malawi could benefit by substantially reducing its 80 percent subsidy while maintaining decent price incentives and farm profits. The paper proposes policy options based on factors influencing yield responsiveness and potential improvements drawn from new modeling and synthesis of the literature.

Year published

2025

Authors

Ragasa, Catherine; Takeshima, Hiroyuki; Asante, Seth; Amare, Mulubrhan; Ma, Ning; Olanrewaju, Opeyemi; Duchoslav, Jan

Citation

Ragasa, Catherine; Takeshima, Hiroyuki; Asante, Seth; Amare, Mulubrhan; Ma, Ning; Olanrewaju, Opeyemi; and Duchoslav, Jan. 2025. Maize yield responsiveness and profitability of fertilizer: New survey evidence from six African countries. Food Policy 133(May 2025): 102815. https://doi.org/10.1016/j.foodpol.2025.102815

Country/Region

Ghana; Uganda; Malawi; Nigeria; Ethiopia

Keywords

Tanzania; Africa; Sub-saharan Africa; Maize; Agricultural Productivity; Agrifood Systems; Inorganic Fertilizers; Yields; Profitability; Data; Prices

Language

English

Access/Licence

Open AccessCC-BY-4.0

Links

https://doi.org/10.1016/j.foodpol.2025.102815 Source record

Project

National Policies and Strategies

Record type

Journal Article

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Brief

Economic and welfare implications of the reduction of US foreign assistance in Malawi

2025Cockx, Lara; De Weerdt, Joachim; Duchoslav, Jan; Jamali, Andrew; Nagoli, Joseph; Pauw, Karl; Thurlow, James
Details

Economic and welfare implications of the reduction of US foreign assistance in Malawi

For over a decade, the US has consistently ranked as either the largest or second-largest donor to Malawi. Annual foreign assistance disbursements have averaged over $360 million between 2020 and 2023. In January 2025 the US government suspended all US-funded foreign aid programs. As of April 2025, the available information suggests that funding for many of these programs in Malawi has been withdrawn, resulting in an estimated decline in US foreign assistance to Malawi of around 59% for 2025. As a result, Malawi faces a potential decline in foreign exchange inflows of around $177 million in 2025, a loss equivalent to approximately 6.3% of the annual merchandise import bill. With Malawi’s economy currently highly vulnerable, lacking the buffers needed to absorb shocks, the eco nomic and welfare implications of these recent events are concerning. The suspensions may lead to an economic contraction from reduced activities by US implementing partners, immediate pressure on the exchange rate (endangering the affordability or availability of critical imports) and declining productivity in key sectors such as agriculture. Deteriorating health and education outcomes could further affect the productivity of workers in the longer run. In this policy note we combine qualitative and quantitative information gathered in-country with modeled results of the possible economywide impacts of the reduction of US foreign assistance on key economic and welfare indicators over the next six years. We also discuss policy options that could help mitigate some of the adverse impacts.

Year published

2025

Authors

Cockx, Lara; De Weerdt, Joachim; Duchoslav, Jan; Jamali, Andrew; Nagoli, Joseph; Pauw, Karl; Thurlow, James

Citation

Cockx, Lara; De Weerdt, Joachim; Duchoslav, Jan; Jamali, Andrew; Nagoli, Joseph; Pauw, Karl; and Thurlow, James. 2025. Economic and welfare implications of the reduction of US foreign assistance in Malawi. MaSSP Policy Note 53. Lilongwe, Malawi: International Food Policy Research Institute (IFPRI). https://hdl.handle.net/10568/174201

Country/Region

Malawi

Keywords

Africa; Eastern Africa; Sub-saharan Africa; Welfare; Aid Programmes; Economic Situation; Agriculture; Shock; Development Aid

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Record type

Brief

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Report

IFPRI Malawi monthly maize market report, April 2025

2025International Food Policy Research Institute; Benson, Anderson
Details

IFPRI Malawi monthly maize market report, April 2025

Retail prices of maize fell by 21% in April due to the arrival of newly harvested maize on the market. Relatively cheap imports from all three neighboring countries contributed to the decline in maize prices. Maize retailed below the government-mandated price in 21 out of 26 monitored markets.

Year published

2025

Authors

International Food Policy Research Institute; Benson, Anderson

Citation

International Food Policy Research Institute. 2025. IFPRI Malawi monthly maize market report, April 2025. MaSSP Monthly Maize Market Report April 2025. Washington, DC: International Food Policy Research Institute. https://hdl.handle.net/10568/174476

Country/Region

Malawi

Keywords

Africa; Eastern Africa; Sub-saharan Africa; Maize; Market Prices; Retail Prices; Food Prices; Imports

Language

English

Access/Licence

Open Access

Source

Source record

Record type

Report

Blogs

Behavioral explanations for the sell-low-buy-high puzzle in smallholder market participation: Lessons from a field experiment in Malawi
IFPRI Blog
 | 
July 22, 2024

Behavioral explanations for the sell-low-buy-high puzzle in smallholder market participation: Lessons from a field experiment in Malawi

By Joachim De Weerdt, Brian Dillon, Emmanuel Hami, Bjorn Van Campenhout, and Leocardia Nabwire

Our study tested two behavioral interventions—budgeting and sales planning—to understand and mitigate this paradox.

Enhancing farm productivity and rural livelihoods through ICT interventions in Malawi
IFPRI Blog
 | 
July 10, 2024

Enhancing farm productivity and rural livelihoods through ICT interventions in Malawi

By Catherine Ragasa, Ning Ma, and Emmanuel Hami

New opportunities as mobile phone use grows in farming areas.