Board of Governors of the Federal Reserve System (U.S.), 1935-. "Request for comment on alternative approaches to calculate the private-sector adjustment factor for priced services : Attachment 1" in Press Releases of the Board of Governors of the Federal Reserve System (May 18, 2005). https://fraser.stlouisfed.org/title/9237/item/675313/content/pdf/frsbog_pr_20050518a-1, accessed on March 14, 2026.