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 total wages. 

(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 intellectual property assets. 

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

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Last Modified Date: June 23, 2015
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