Carlson, Mark A. and Duygan-Bump, Burcu. "Unconventional Monetary Policy as Conventional Monetary Policy: A Perspective from the U.S. in the 1920s, 2018-019," Finance and Economics Discussion Series (March 2018). https://fraser.stlouisfed.org/title/1491/item/724038, accessed on June 8, 2026.