The study of Interindustry Relations for 1947 is a comprehensive analysis of the transactions relationships among the separate industries of the United States in that year. For purposes of this study, the United States economy was subdivided into about 500 separate sectors or activities, the majority of which correspond with conventional industry classifications. A detailed statistical analysis was carried out for each sector of the purchases from and sales to all sectors in 1947, and the results were reconciled within a general framework of national production and. consumption data.
United States Department of Labor, Bureau of Labor Statistics, "Industry Reports: MANUFACTURING METHODOLOGY The 1947 Interindustry Relations Study" (1953). Accounts and Data. 5.