Promoting the Purchase to Plate Tools for Food Demand and Diet Quality Research

The Gifford Center for Population Studies, located at the University of California, Davis, in collaboration with the Economic Research Service of the USDA seeks to promote the use of the Purchase to Plate tools developed by USDA. 

The Purchase to Plate tools developed by USDA are designed to use retail and household food scanner data to estimate food prices for NHANES and to import USDA nutrition data into scanner data for research on the economics of food choices. The Purchase to Plate Crosswalk uses a combination of probabilistic and manual matching to link the scanner data to the USDA Food and Nutrient Database for Dietary Studies (FNDDS) and enables researchers to measure Healthy Eating Index scores for both retail and household panel scanner data. The Purchase to Plate Price Tool estimates food prices for NHANES foods and the Purchase to Plate Ingredient Tool breaks the food prices into ingredient prices and quantities based on market purchases (e.g. the amount of rice that is purchased as ready to heat versus rice that requires cooking.

To build a wider stakeholder base in the research community and to increase the use of the Purchase to Plate tools, ERS will fund five competitive grants to be chosen and administered by the Gifford Center at the University of California, Davis. These grants will support the use of the Purchase to Plate tools and research on diet quality and food choices, the cost of a healthy diet, nutritional food insecurity, and economic and racial disparities in diets, among other themes. Papers resulting from the funded studies will be featured in a workshop and published in high-quality journals or, if a suitable plan can be developed, a collective submission and review at a leading economics or food policy journal. 

About the Purchase to Plate (PP) Tools
The Purchase to Plate Crosswalk (PPC) uses a combination of probabilistic and manual matching to link IRI scanner data to the USDA Food and Nutrient Database for Dietary Studies (FNDDS) and enables researchers to measure Healthy Eating Index (HEI) scores for both retail and household panel scanner data. The HEI score allows researchers to measure how well a basket of food complies with the Dietary Guidelines for Americans in terms of the quality of the nutrients. The Purchase to Plate Price Tool (PPPT) estimates food prices for NHANES foods and the Purchase to Plate Ingredient Tool (PPIT) breaks the food prices into ingredient prices and quantities based on market purchases. Researchers can use the PPPT and PPIT on all the retail IRI scanner data or a subset of the data, such as regional or store-type. The Purchase to Plate National Average Prices (PP-NAP) for NHANES are publicly available data and are not considered part of this grant proposal.

New proprietary data page at ERS:
https://www.ers.usda.gov/topics/food-markets-prices/food-prices-expenditures-and-establishments/using-proprietary-data/

More information about the IRI data and the Purchase to Plate Crosswalk can be found at: https://www.ers.usda.gov/topics/food-markets-prices/food-prices-expenditures-and-establishments/using-proprietary-data/#iri

More information about the Purchase to Plate Price and Ingredient Tool are available at: https://www.ers.usda.gov/publications/pub-details/?pubid=99294

This open access publication provides the information on updated versions of the Purchase to Plate Crosswalk and the Purchase to Plate Price Tool and introduces the Purchase to Plate Ingredient Tool:  https://www.sciencedirect.com/science/article/pii/S0889157521005445

Please consult the following webinar by Andrea Carlson of USDA-ERS for additional information on the PP toolkit: https://gifford.ucdavis.edu/usda-pp-grants/PPPresentation

About the PP Grants

To build a wider stakeholder base in the research community and to increase the use of the Purchase to Plate tools, ERS will fund five competitive grants to be chosen and administered by the Gifford Center at the University of California, Davis.

These grants will support the use of the Purchase to Plate tools to investigate, among other themes:

Papers resulting from the funded studies will be featured in a workshop and are expected to be published in high-quality journals.

View the Terms of Funding | View the Selection CriteriaView the Application Instructions | Download the Call