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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.

Kalyani Raghunathan

Kalyani Raghunathan is Research Fellow in the Poverty, Gender, and Inclusion Unit, based in New Delhi, India. Her research lies at the intersection of agriculture, gender, social protection, and public health and nutrition, with a specific focus on South Asia and Africa. 

Where we work

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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.

Are healthy diets affordable? Using new data on retail prices and diet costs to guide agricultural and food policy

Co-organized by IFPRI, Tufts University, the World Bank, and Food and Agriculture Organization (FAO)

July 15, 2022

  • 10:00 – 11:30 am (America/New_York)
  • 4:00 – 5:30 pm (Europe/Amsterdam)
  • 7:30 – 9:00 pm (Asia/Kolkata)


New Food Prices for Nutrition data in the SOFI 2022 report launching on July 6th uses retail food prices to compute diet costs and the number of people who cannot afford a healthy diet globally. Underlying costs by food group will be published simultaneously on a new Food Prices for Nutrition DataHub hosted at the World Bank, and subnational data are being used for a wide range of in-country research across Africa and Asia.

The new data and methods showcased in this seminar are key tools for policy analysis and monitoring in global and national food systems, measuring food access using retail prices of the most affordable items available at each place and time in quantities needed to meet global nutritional standards for an active and healthy life.

Key innovations include:

  • use of retail prices for many differentiated food products
  • conversion of item prices to standard units, accounting for edible fraction and water weight,
  • selection of least-cost items in quantities sufficient for nutrient adequacy or dietary guidelines,
  • comparison to income based on household survey data as a measure of affordability
  • customization of standard methods to address specific needs in particular settings

This Policy Seminar will feature Food Prices for Nutrition project leaders and participants around the world, who will discuss how policy analysts and researchers can use the new methods and data in their own work. 

This is the fourth event in an IFPRI seminar series on Food and Fertilizer Price Trends: Impacts on global food security.

Introduction to the Food Prices for Nutrition project

  • William Masters, Principal Investigator, Food Prices for Nutrition project, Tufts University
  • Marie Ruel, Director, Poverty, Health and Nutrition Division, IFPRI

Data sources and methods for policy-relevant analysis of diet costs and affordability

Results and implications of global variation in diet costs and affordability

  • Yan Bai, Economist in Global Food and Nutrition, World Bank Development Data Group and Zhejiang University School of Public Affairs (Presentation)

Frontiers of research on food policy based on consumer prices, diet costs and affordability

Global monitoring of the cost and affordability of healthy diet and policy analysis to inform agrifood systems transformation

Q&A Discussion

Moderator