Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Number of Freight Cars, Not Seasonally Adjusted

Frequency:  Quarterly

Series Is Presented Here As Three Variables--(1)--Original Data, 1870-1926 (2)--Original Data, 1920-1942 (3)--Original Data, 1934-1964. This Series Is Compiled From Data Collected From Various Sources Obtained Chiefly From News Items Appearing In Issues Of Railway And Iron Trade Periodicals. The Sources Made No Claim Of Completeness Or Accuracy Of Information; See Also The Bulletin Of The American Iron And Steel Association, Monthly Reports Of The Bureau Of Statistics, And The Files Of Railroad Companies. Source: The Brookings Institution, John E. Partington, Railroad Purchasing And The Business Cycle, Pp. 219-226.

This NBER data series q06028a appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.

NBER Indicator: q06028a