Data Are Based On Reports Of National Association Of Purchasing Agents For Changes In New Orders From The Previous Month. Data Cover Forty-Two Industries In All States Excepting New Mexico And Montana. Source: G.H. Moore, Business Cycle Indicators, Vol. 2, NBER, P. 158
This NBER data series m16087b appears on the NBER website in Chapter 16 at http://www.nber.org/databases/macrohistory/contents/chapter16.html.
NBER Indicator: m16087b
Release: NBER Macrohistory Database
National Bureau of Economic Research, Diffusion Index, New Orders, 225 Companies, One Month Span for United States [M1687BUSM509SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M1687BUSM509SNBR/, July 2, 2015.