Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 19 references without a DOI — listed, not checked
no DOI — not checkedAbel, Andrew B.; Bernanke, Ben S.Macroeconomics, Reading, MA: Addison-Wesley Publishing Company, 1992.
no DOI — not checkedAhmed, Shaghil; Ickes, Barry W.; Wang, Ping; Yoo, Byung Sam. "International Business Cycles,"American Economic Review, 83, 3, June 1993, pp. 335–59.
no DOI — not checkedBalke, Nathan S.; Gordon, Robert J. "Historical Data, Appendix B," in Robert J. Gordon, ed.,The American Business Cycle: Continuity and Change, Chicago, IL: The University of Chicago Press, 1986, pp. 781–850.
no DOI — not checkedBankers' Magazine, New York, NY: Bradford Rhodes and Company, various issues.
no DOI — not checkedBankers', Insurance Managers', and Agents' Magazine, London, United Kingdom: Waterlow and Sons Ltd., various issues.
no DOI — not checkedBoard of Governors of the Federal Reserve System.Federal Reserve Bulletin, Washington, DC: Government Printing Office, various issues.
no DOI — not checked__.Banking and Monetary Statistics, Washington, DC: Government Printing Office, 1943.
no DOI — not checkedBoyes, William J.Macroeconomics: Intermediate Theory and Policy, 3rd ed., Cincinnati, OH: South-Western Publishing Company, 1992.
no DOI — not checkedFrickey, Edwin.Production in the United States: 1869–1914, Cambridge, MA: Harvard University Press, 1947.
no DOI — not checkedFroyen, Richard T.Macroeconomics: Theory and Policy, 3rd ed., New York, NY: Macmillan Publishing Company, 1990.
no DOI — not checkedInternational Monetary Fund.International Financial Statistics, Washington, DC: International Monetary Fund, various issues.
no DOI — not checkedMiron, Jeffrey A.; Romer, Christina D. "A New Index of Industrial Production, 1884–1940," National Bureau of Economic Research Working Paper, No. 3172, November 1989.
no DOI — not checkedMitchell, B. R.British Historical Statistics, Cambridge, United Kingdom: Cambridge University Press, 1988.
no DOI — not checkedNew York Times, New York, NY: New York Times Co., various issues.
no DOI — not checkedU.S. Bureau of the Census.Historical Statistics of the United States, Colonial Times to 1970, Bicentennial Edition, Washington, DC: Government Printing Office, 1976.
no DOI — not checked__.Statistical Abstract of the United States, Washington, DC: Government Printing Office, various issues.
no DOI — not checkedU.S. Bureau of Labor Statistics.Handbook of Labor Statistics, Washington, DC: Government Printing Office, 1950.
no DOI — not checkedU.S. Department of Commerce, Bureau of Economic Analysis.Business Statistics, Washington, DC: Government Printing Office, various issues.
no DOI — not checkedWarren, G. F.; Pearson, F. A.Wholesale Prices for 213 Years, 1720 to 1932, Ithaca, NY: Cornell University, 1932.
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