Economic News Release

Sources and footnotes for tables 1-4

Footnotes, Tables 1-4

Source: The Bureau of Labor Statistics (BLS) develops productivity measures
using output and compensation data published by the Bureau of Economic 
Analysis (BEA), hours data published by other BLS programs, and capital 
data supplied by BEA and U.S. Department of Agriculture. Also see 
Technical Notes in this release.

(1) The private business sector covers gross domestic product with the
    exception of 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 
    further excludes farms but includes agricultural services.

(2) Output per combined units of labor input and capital services.

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

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

(5) A measure of the flow of capital services used in the sector. Capital 
    services measure the services derived from the stock of physical 
    assets and software. The assets included are fixed business equipment, 
    structures, inventories, and land.

(6) The growth rates of labor input and capital services are combined by 
    weighting with their respective shares of current dollar costs, and
    aggregating into a chained superlative index.

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Last Modified Date: April 03, 2014
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