Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Dollars, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Fourt Variables--(1)--Original Data, 1915-1934 (2)--Original Data, 1933-1948 (3)--Original Data, 1942-1948 (4)--Original Data, 1948-1961 Data In This Variable Cover "Large" Companies, Which Were Formerly Called Class A Companies -- Those Having Annual Operating Revenues In Excess Of $250,000. Data Cover 100-114 Companies. The Huge Decrease In June 1934 Reflects About Sixteen Million Dollars In Refunds To Chicago Coin-Box Subscribers, Covering An Eleven-Year Period, Deducted During June By The Illinois Bell Telephone Company. Data For December 1934; March, November, And December 1935 Reflect Adjustments Covering Estimated Refunds. Source: Data For 1933-1940: Federal Communications Commission, "Statistics Of The Communications Industry In The United States" For The Year Ended December 31, 1941. Data For 1941-1948: U.S. Department Of Commerce, Survey Of Current Business; Cross-Checked With Issues Of The Fcc Publication Cited Above.

This NBER data series m03018b appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: m03018b