https://www.nber.org/books-and-chapters/scanner-data-and-price-indexes/price-collection-and-quality-assurance-item-sampling-retail-prices-indexhow-can-scanner-data-help
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings...
price collectionquality assuranceitemsampling