This project uses new price indexes to conduct nearly real-time monitoring of retail prices by food group and nutrient composition, measuring month-to-month changes in the cost and affordability of nutritious diets in various countries. We use software tools and data developed from a project funded by UKAid and the Bill & Melinda Gates Foundation entitled Changing Access to Nutritious Diets in Africa and South Asia (CANDASA): The CANDASA project’s new aims related to COVID-19 are: (1) Obtain monthly updates for item-level food prices from as many countries as possible; (2) Match items to nutrient composition and foodgroup to compute diet costs; (3) Compute cost-of-diet indexes by food group and for nutrient adequacy monthly for each location; (4) Identify price spikes that signal supply chain failures, and price declines that would signal loss of income and effective demand,as anomalies relative to the spatio-temporal price surface observed in previous years; (5) Match food price anomalies to the timing, location and severity of COVID outbreaks, to identify conditions that make retail food prices more or less resilient to COVID-related disruption.

Study Type:
Descriptive / Surveillance
May-December 2020
Implemented by IPA:
Implementing Organization:
Tufts University
Impact Goals:
Build resilience and protect the financial health of families and individuals; Build resilient and adaptable businesses and employment opportunities; Improve social-safety net responses; Improve women’s health, safety, and economic empowerment; Keep children safe, healthy, and learning
Outcomes of Interest:
Price indexes by food group to track cost and affordability of nutritious diets over time and space; identifying temporal and spatial anomalies as near real-time indicators of supply disruption, loss of income, or other shocks
Data Collection Mode:
External Website:
Results Status:
No Results Yet