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Economic News Release
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Sources and footnotes for tables 1-4

                        Footnotes, Tables 1-4

Source:  Output data are from the Bureau of Economic Analysis (BEA), 
U.S. Department of Commerce, and are modified by the Bureau of Labor 
Statistics (BLS), U.S. Department of Labor.  Compensation and hours data are 
from BLS.  Capital measures are based on data supplied by BEA and the U.S. 
Department of Agriculture.  See also Summary of Methods in this release.

(1) The private business sector includes all of gross domestic product except 
    the output of general government, government enterprises, non-profit 
    institutions, the rental value of owner-occupied real estate, and the 
    output of paid employees of private households. The private nonfarm 
    business sector also excludes farms but includes agricultural services.

(2) Output per unit of combined labor and capital inputs.

(3) Gross domestic product originating in the sector, 
    superlative chained index.

(4) Index of hours at work of all persons including employees, proprietors,
    and unpaid family workers classified by age, education, and gender.
    This superlative chain index is computed by combining changes in the 
    hours of each age, education, and gender group weighted by each 
    group's share of labor compensation. 

(5) A measure of the flow of capital services used in the sector.

(6) Labor input combined with capital input, using labor's and capital's 
    shares of costs as weights to form a superlative chained index. 

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Last Modified Date: October 30, 2020