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C Methods for Deriving Bureau of Labor Statistics Measures of Productivity for Service Industries
Pages 234-246

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From page 234...
... Table C.1 also provides Standard Industrial Classification code information to clarify industry definitions as they are used by the BLS. Transportation The BLS publishes indexes of productivity for five transportation industr~es: railroads, intercity buses, intercity trucking, air transportation, and petroleum pipelines.
From page 235...
... Deflated merchandise line sales combined with employment weights. Merchandise line sales for 16 departments separately deflated with consumer price indexes.
From page 236...
... Index for other food stores derived by combining indexes for meat, fish markets, fruit stores, markets, dairy stores, and confectioneries with employee weights. Detailed indexes based on deflated merchandise line sales combined with gross margins.
From page 237...
... , CPI-deflated merchandise line sales combined with gross margin weights. Outlet indexes in turn combined with employment weights.
From page 238...
... The preferred way to develop such measures would be to combine the tonnage and average haul of each commodity with its respective requirements for labor input and then aggregate the results for all commodities transported. Unfortunately, this cannot be done with currently available data.
From page 239...
... The data on revenue are collected and published by the Federal Communications Commission. Deflators are derived from price indexes compiled and published by the BLS under its Producer Price Index program.
From page 240...
... This method can yield good measures of real output if adequate consumer price indexes can be developed that reflect the price movements of the various commodities sold by the establishments. The recent improvements that have been made in the BLS Consumer Price Index program have enabled it to develop indexes of output and productivity for more components of retail trade.
From page 241...
... For example, in retail food stores, sales for 13 key merchandise lines are deflated using specially prepared price indexes based on the BLS Consumer Price Index components. The indexes for the merchandise lines are aggregated to five department lines meat, produce, frozen food, dry groceries and dairy, and all others.
From page 242...
... For timeand savings-deposit activity, the measure of output is derived from data published by the Federal Deposit Insurance Corporation and the Functional Cost Analysis conducted annually by the Federal Reserve Board. Lending services provided by banks are also measured in terms of units.
From page 243...
... These measures are then combined with employment weights to derive an index of output for each industry. The BLS uses special price indexes derived from its Consumer Price Index program for deflating the receipts from the principal activities of each of the industries.
From page 244...
... MEASURES OF LABOR INPUT Productivity calculations require data on the hours worked of nonsupervisors, supervisors, unpaid family workers, and the self-employed. The principal source of data on employment and hours for all of the service industries for which BLS publishes indexes of productivity is the BLS survey of establishments' payrolls, the Current Employment Survey (CES)
From page 245...
... This assumption presents fewer limitations for developing measures of change than for developing base labor input. The most desirable measure of productivity is one that uses only the amount of labor actually involved in the generation of the services provided and excludes paid time off.
From page 246...
... The BLS has developed some experimental measures of labor input based solely on changes in the amount of work experience and schooling workers have.2 The methods used follow directly from the economic theory of human capital developed by Mincers and Becker.4 The method rests on the assumption that increased schooling and on-thejob training increase one's stock of skills and productivity. It also assumes that economic returns to higher education and additional work experience reflect the marginal productivity of these characteristics.


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