Quality Certification of Infant Foods
My research in Mali and Ghana suggests a new way to improve child nutrition in Africa, through quality certification of infant foods produced using local ingredients by artisanal and medium-scale enterprises. Doing so could dramatically lower the cost of the high-density complementary foods needed during the crucial period from 6 to 24 months of age. Recent work on this topic follows below:
- Presentation at APHA (Oct. 2012): latest slides
- Detailed explanation (2011): video of seminar at Harvard School of Public Health (50 min., Sept. 2011) and slides (huge file, 47MB!)
- Scoping study in Ghana (2011): working paper (3 MB) and policy brief (1 MB)
- Brief presentation at IFPRI conference in New Delhi (2011): streaming video (10 min., Feb. 2011)
- Short summaries (2010): one-page concept note, and descriptions in the Tufts Journal and Tufts Nutrition magazine
Summary and links to publications on previous work in Mali:
|In this research, we ask whether child nutrition in developing countries could be improved by a program to test and certify the nutrient density of infant foods produced by local entrepreneurs.Currently, the infant-food market is dominated by high-priced products, like those being displayed by the pharmacist in the first photo.These products are sold for many times the cost of nutritionally-similar alternatives developed by public health agencies. But when the lower-cost products are offered for sale, people rarely buy them.Our hypothesis is that people only buy the brand-name foods, even though they cannot afford enough quantity to meet their childrens’ needs, because they cannot observe these products’ nutritional content – so only a high priced brand name can be trusted at all. This kind of market failure was first described by George Akerlof, for which he shared the 2001 Nobel Prizein Economics.To investigate the value of quality certification for infant foods, we conducted a market experiment in Bamako, Mali, measuring mothers’ demand for information about infant food quality.The second picture shows the choices we offer: the high-priced name brand, or a variety of other products including some whose quality is certified by Mali’s national food and agriculture research service.In our market experiment, mothers had an opportunity to make real choices between these products. This told us how much they care about various product attributes. Using the choices of the woman pictured on the right, and the choices made by 238 other women in and around the city of Bamako, Mali, we are able to calculate the value of quality certification.
Using a rough budget for certification services, we estimated that the net welfare gains would be on the order of $20 per year per child of the relevant ages (6-24 months), which represents about one month’s worth of adequate nutrition for that child.
The original research was funded by USAID, as part of a larger project on innovation in West African agriculture. The original publications, media coverage and a video about the research in Mali is posted below.
|Citations and other links
W.A. Masters and D. Sanogo, “Welfare Gains from Quality Certification of Infant Foods: Results from a Market Experiment in Mali”, American Journal of Agricultural Economics, 84(4, November 2002): 974-989. (Link to preprint.)
D. Sanogo and W.A. Masters, “A Market-Based Approach to Child Nutrition: Mothers’ Demand for Quality Certification of Infant Foods in Bamako, Mali”, Food Policy, 27(3, November 2002): 251-268. (Link to preprint.)
This work is also documented in an unpublished French version, entitled Amélioration de la Nutrition Infantile. It attracted press coverage in the Chronicle of Higher Education, and is also described in a 20-minute video designed for high-school economics classes.