Methodology Behind the Quarterly Food-at-Home Price Database
The Quarterly Food-at-Home Price Database (QFAHPD) was developed to provide market-level food prices that can be used to study how prices affect food choices, intake, and health outcomes. This report presents a detailed description of the methodology used to construct the QFAHPD. The database, constructed from 1999-2006 Nielsen Homescan data, includes quarterly observations on the mean price of 52 food categories for 35 market groups covering the contiguous United States. Data from 2006 indicate that cross-market price variation can be as much as three to four times greater than annual food price inflation.
|Date of creation:||Apr 2010|
|Date of revision:|
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- Einav, Liran & Leibtag, Ephraim S. & Nevo, Aviv, 2008. "On the Accuracy of Nielsen Homescan Data," Economic Research Report 56490, United States Department of Agriculture, Economic Research Service.
- Carlson, Andrea & Lino, Mark & Juan, WenYen & Marcoe, Kristin & Bente, Lisa & Hiza, Hazel A. B. & Guenther, Patricia M. & Leibtag, Ephraim S., 2008. "Development of the CNPP Prices Database," CNPP Reports 45851, United States Department of Agriculture, Center for Nutrition Policy and Promotion.
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