Recent and Planned Improvements in the Measurement and Deflation of Services Outputs and Inputs in BEA's Gross Product Originating Estimates

Michael F. Mohr, Output Measurement in the Service Sectors (University of Chicago Press, 1992), chap. 1, https://www.nber.org/books-and-chapters/output-measurement-service-sectors/recent-and-planned-improvements-measurement-and-deflation-services-outputs-and-inputs-beas-gross.