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Economic News Release
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Sources and footnotes for tables

SOURCES: Output data are from the Bureau of Economic Analysis and the 
Census Bureau of the U.S. Department of Commerce; the Bureau of Labor 
Statistics, U.S. Department of Labor; and the Federal Reserve Board. 
Hours and compensation data are from the Bureau of Labor Statistics and 
the Bureau of Economic Analysis.

RELIABILITY: Productivity and cost measures are regularly revised as more 
complete information becomes available.  The measures are first published 
within 40 days of the close of the reference period; revisions appear 30 
days later, and second revisions after an additional 60 days.  In the 
business sector, the third publication (second revision) of a quarterly 
index of output per hour of all persons has differed from the initial 
value by between -1.7 and 1.5 index points approximately 95 percent of 
the time.  This interval is based on the performance of this measure 
between the fourth quarter of 1995 and the first quarter of 2012.

      			   Table Footnotes
(1) Wages and salaries of employees plus employers' contributions for 
social insurance and private benefit plans. Except for nonfinancial 
corporations, where there are no self-employed, data also include an 
estimate of wages, salaries, and supplemental payments for the self-

(2) The change for recent quarters is based on the Consumer Price Index 
for all urban consumers (CPI-U). The trend from 1978-2011 is based on 
the Consumer Price Index research series (CPI-U-RS).

(3) Unit nonlabor payments include profits, consumption of fixed 
capital, taxes on production and imports less subsidies, net interest and 
miscellaneous payments, business current transfer payments, rental income 
of persons, and the current surplus of government enterprises.

(4) Current dollar output divided by the output index.

(5) Quarterly changes: Percent change compounded at annual rate is 
calculated using index numbers to three decimal places. Indexes 
published in the news release are rounded to one decimal place for 
convenience. Annual changes: Percent change is calculated using annual 
indexes to three decimal places.

(6) Unit nonlabor costs include consumption of fixed capital, taxes on 
production and imports less subsidies, net interest and miscellaneous 
payments, and business current transfer payments.

(7) Total unit costs are the sum of unit labor and nonlabor costs.

(8) Unit profits include corporate profits before tax with inventory 
valuation and capital consumption adjustments.

Table of Contents

Last Modified Date: October 29, 2020