Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Dollars, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Series Is Presented Here As Four Variables--(1)--Original Data, 1915-1934 (2)--Original Data, 1933-1948 (3)--Original Data, 1942-1948 (4)--Original Data, 1948-1961. Data Cover 100-114 Companies. Beginning In 1942, Intercompany Duplications In Revenue For The Bell System Are Eliminated. Source: Federal Communications Commission, "Statistics Of The Communications Industry In The United States, Year Ended December 31, 1951", Published 1953; Same Publication For The Year Ended December 31, 1952, Published 1954.

This NBER data series m03018c appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: m03018c