Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Index Jan 1923=100, Not Seasonally Adjusted

Frequency:  Monthly

The Index Was Derived By NBER From Figures Showing The Percentage Changes Between Successive Months For Changing Groups Of Identical Firms. Source: Computed By NBER From Figures Sent By The Federal Reserve Board Of Chicago

This NBER data series m06049 appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.

NBER Indicator: m06049