Source: Computed By NBER By Subtracting Series 13002 (New York City Commercial Paper Rates) From Series 13017 (Paris Open Market Discount Rate); Paris Data Are From The Economist And The National Monetary Commission; New York Data Are From NBER Files.
This NBER data series m13037 appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html.
NBER Indicator: m13037
Release: NBER Macrohistory Database
National Bureau of Economic Research, Excess of Paris Open Market Discount Rate Over New York Commercial Paper Rate [M13037M156NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M13037M156NNBR/, September 4, 2015.