Subscribe

Back

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

Carlo Azzarri

Carlo Azzarri is a Senior Research Fellow in the Innovation Policy and Scaling Unit. His work focuses on the relationships among poverty, nutrition, food security, agriculture, the environment, production, and migration—analyzed at both micro and macroeconomic levels, primarily using quantitative methods.

Back

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.

Research topics

Projects and impact

Modeling tools

Project microsites

What’s new

Where we work

Back

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.

IFPRI Regional Programs

IFPRI Country Programs

Research by country and region

Subscribe

experts

Development Strategies and Governance

Nina Jovanovic

Associate Research Fellow

Follow

Nina

at:

ORCiD
jovanovic_nina

Bio

Nina Jovanovic is an Associate Research Fellow in the Development Strategy and Governance Division based in Cairo, Egypt. Her dissertation looked at the effects of technology adoption decisions made by smallholder farmers with incomplete information. She completed her PhD in Agricultural Economics at Purdue University in 2023.

Personal Website

Google Scholar Citations

CV

Publications

Resource thumbnail

Journal Article

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

2025Jovanovic, Nina; Ricker-Gilbert, Jacob
Details

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

Year published

2025

Authors

Jovanovic, Nina; Ricker-Gilbert, Jacob

Citation

Jovanovic, Nina; and Ricker-Gilbert, Jacob. 2025. Estimating the direct and indirect effects of improved seed adoption on yields: Evidence from DNA-fingerprinting, crop cuts, and self-reporting in Ethiopia. Journal of Development Economics 174(May 2025): 103466. https://doi.org/10.1016/j.jdeveco.2025.103466

Country/Region

Ethiopia

Keywords

Africa; Eastern Africa; Sub-saharan Africa; Crop Yield; Deoxyribonuclease; Seed; Technology Adoption

Language

English

Access/Licence

Open AccessCC-BY-4.0

Links

https://doi.org/10.1016/j.jdeveco.2025.103466 Source record

Project

National Policies and Strategies

Record type

Journal Article

Resource thumbnail

Brief

Targeting in development projects in Egypt: Approaches, challenges, and lessons learned

2024Shokry, Nada; Jovanovic, Nina; Kurdi, Sikandra; Hamdy, Adham; Elkaramany, Mohamed
Details

Targeting in development projects in Egypt: Approaches, challenges, and lessons learned

Effective targeting strategies are vital for almost all development programs. Universal approaches which provide aid to all individuals regardless of need are not always feasible given limited budgets and varying development priorities. Conversely, targeting directs resources to those in greatest need, ensures efficient allocation while upholding principles of social justice, equality, and the right to assistance. This policy note summarizes the outcomes of a workshop held in Cairo on October 20, 2023, which brought together researchers, development practitioners, and policymakers. The high-level dialogue was part of the “Bridging Evidence and Policy” (BEP) seminar series, a collaborative initiative by the Egyptian Food Bank (EFB), the International Food Policy Research Institute (IFPRI), and the Sawiris Foundation for Social Development (SFSD). The BEP series serves as a platform for knowledge exchange and collaborative learning among donors, local and international implementers, and government representatives, with a focus on improving targeting in development projects. This note highlights the key discussions, offering insights into best practices and recommendations to enhance the effectiveness of program targeting.

Year published

2024

Authors

Shokry, Nada; Jovanovic, Nina; Kurdi, Sikandra; Hamdy, Adham; Elkaramany, Mohamed

Citation

Shokry, Nada; Jovanovic, Nina; Kurdi, Sikandra; Hamdy, Adham; and Elkaramany, Mohamed. 2024. Targeting in development projects in Egypt: Approaches, challenges, and lessons learned. MENA Policy Note 26. Washington, DC: International Food Policy Research Institute. https://hdl.handle.net/10568/168420

Country/Region

Egypt

Keywords

Africa; Northern Africa; Targeting; Development Projects

Language

English

Access/Licence

Open AccessCC-BY-4.0

Source

Source record

Project

National Policies and Strategies

Record type

Brief

Events

32nd International Conference of Agricultural Economists
IFPRI at External Event

 | 

August 2 to 7, 2024

32nd International Conference of Agricultural Economists

The triennial International Conference of Agricultural Economists (ICAE-2024), centred on the theme “Transformation Towards Sustainable Agri-Food Systems” is scheduled from August 2-7, 2024, in New Delhi, India. The conference offers a distinctive platform, providing a golden opportunity for the agricultural academic institutions and researchers to convene in person, exchange knowledge, and actively contribute to the […]