Despite substantial literature on how to improve the food environment for children, there has been little work examining how price promotions, nutrient-related claims, and their interactions might be associated with the nutrient profile of food purchases, particularly for lower-income and racial/ethnic minority populations. This study will address these gaps using 2008-2012 data for a demographically representative panel of over 40,000 U.S. household with children from the IRI National Consumer Panel, a large transaction-level database. Specific aims of this project are to: 1) describe characteristics of U.S. households with children who respond to price promotion and/or nutrition-related claims in key product groups; 2) quantify the associations between price promotions, nutrition-related claims, and the interactions between price promotions and claims on the nutrient profile of food purchases in key product groups; and 3) examine whether the response to price promotions, nutrition-related claims, and the interaction of price promotions and claims varies by race/ethnicity, income, and other characteristics such as access to various food sources. The investigator will use varying statistical measures for each aim, including a series of matching and clustering techniques and a dynamic quadratic almost ideal demand system (QAID).
Start Date: July 2015
ID #: CAS027
Organization: Duke University
Project Lead: Matthew Harding, PhD
Resource Type: Commissioned Research Project Summary
Deal or No Deal? The Prevalence and Nutritional Quality of Price Promotions Among U.S. Food and Beverage PurchasesThis study examines trends in the prevalence of price promotions among packaged food and beverage purchases, differences in prevalence by household race/ethnicity or income, and the association between price promotions and the nutritional profile of purchases. The cross-sectional study uses a dataset of 90 million purchases from 38,744 (2008) to 45,042 (2012) U.S. households in More
No Fat, No Sugar, No Salt…No Problem? Prevalence of “Low-Content” Nutrient Claims and Their Associations with the Nutritional Profile of Food and Beverage Purchases in the United StatesNutrient content claims, which characterize the level of a nutrient in a food (e.g., “low-sugar”), are a commonly used marketing tactic. The association between claims, the nutritional quality of products, and consumer purchases is unknown. This study examined low-content nutrient claims on more than 80 million packaged food and beverage purchases from a transaction-level database More