Cao, Wenxuan, and Richardson, Gary. Annual U.S. County Population, 1890-1950, Digitized. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2024-02-01. https://doi.org/10.3886/E192028V1
Cao, Wenxuan, and Richardson, Gary. Annual U.S. Population by Federal Reserve Districts. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2024-02-01. https://doi.org/10.3886/E192904V1
Cao, Wenxuan, and Richardson, Gary. Decennial U.S. County Population, 1790-1950, Digitized. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2023-07-23. https://doi.org/10.3886/E186141V1
All Bank Statistics, 1896-1955, Digitized. (Open Icpsr 182671). Wenxuan Cao, Gary Richardson. December 6, 2022
Replication data for: Shadowy Banks and Financial Contagion during the Great Depression: A Retrospective on Friedman and Schwartz go to OpenICPSR site. Mitchener, Kris James; Richardson, Gary. October 11, 2019.
Business Failures by Industry in the United States, 1895 to 1940: A Statistical History (ICPSR 34016). Richardson, Gary; Gou, Michael. July 5, 2012