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Historical, technical USDL 04-1061
information: (202) 691-5618 FOR RELEASE: 10:00 a.m. EDT
Media contact: (202) 691-5902 Wednesday, June 16, 2004
Internet: http://www.bls.gov/lpc/home.htm
PRODUCTIVITY AND COSTS IN SELECTED SERVICE-PROVIDING
AND MINING INDUSTRIES, 2002
The Bureau of Labor Statistics of the U.S. Department of Labor reported today on
productivity and costs for selected service-providing and mining industries. Labor
productivity--defined as output per hour--rose in 2002 in 24 of the additional 32
industries for which 2002 data are now available. (See box on page 3 for further
information.) In almost three-fifths of the industries with productivity gains, there was a
decline in hours that was larger than the decline in output. Output increased in only 12
industries, and hours rose in just 7 industries. Unit labor costs (the ratio of total
compensation to output) declined in 17 of the 24 industries with productivity gains.
Over the period 1987 to 2002, labor productivity increased in 29 of the 32
industries. Output rose in 29 industries, while hours grew in 18 industries. Unit labor
costs fell in 7 of the 29 industries registering productivity growth.
2001-2002 change
Three-fourths of the 32 industries recorded labor productivity gains in 2002. (See
table 1.) Output per hour increased 4.3 percent in the mining sector with three of the four
separate mining industries registering productivity growth. Metal ore mining posted the
largest gain in output per hour at 9.2 percent. The sole decline occurred in coal mining,
where labor productivity fell 1.9 percent. Unit labor costs in this industry grew 3.8
percent, the steepest rise in the mining sector. Unit labor costs in metal ore mining, on
the other hand, fell 5.6 percent.
Five of the six utilities and transportation industries covered posted gains in
output per hour in 2002. The strongest growth occurred in air transportation, where labor
productivity grew 12.2 percent. Line-haul railroads and general freight trucking, long
distance also registered strong productivity gains at 8.3 percent and 5.0 percent,
respectively. The only industry in this group with a decline was power generation and
supply, where labor productivity fell 3.8 percent. Two-thirds of the industries had
decreases in unit labor costs. Unit labor costs fell 5.2 percent in natural gas distribution,
3.2 percent in general freight trucking, long distance, and 2.5 percent in air transportation.
Productivity increased in all but one of the information industries in 2002. In the
detailed 4- and 5-digit information industries, more than three-fourths of the gains were
greater than 4.5 percent. Double-digit productivity growth (11.2 percent) occurred in
wireless telecommunications carriers. All but one of the information industries saw
reductions in unit labor costs. Unit labor costs fell 16.9 percent in wireless
telecommunications carriers and 9.7 percent in software publishers.
Among all other service providers (which include industries in the following
sectors: finance and insurance; real estate and rental and leasing; professional and
technical services; accommodation and food services; and other services), labor
productivity rose in 2002 in 6 of the 11 industries for which BLS maintains measures.
The strongest growth occurred in tax preparation services and photofinishing, at 17.8
percent and 16.1 percent, respectively. Two of the three largest industries, those with
more than 1,000,000 employees, posted gains in labor productivity. Output per hour
increased 2.1 percent in traveler accommodations and 2.2 percent in commercial banking,
but decreased 5.2 percent in automotive repair and maintenance. Only two of these
industries had declines in unit labor costs--advertising agencies (8.4 percent) and
photofinishing (6.7 percent).
Long-term trends
From 1987 to 2002, nearly all the industries presented here recorded productivity
gains. In the mining sector, productivity increased 1.8 percent per year while unit labor
costs grew 2.4 percent per year. Output per hour rose in all mining industries. The
largest increases in labor productivity were 4.8 percent per year in metal ore mining and
4.4 percent per year in coal mining. These were the only industries in the mining sector
with decreases in unit labor costs. Unit labor costs fell 2.1 percent per year in coal
mining and 0.7 percent per year in metal ore mining.
Output per hour increased in all six of the utilities and transportation industries
over the long-term. The increases ranged from 1.0 percent per year in the postal service
to 5.5 percent per year in line-haul railroads. Line-haul railroads was the only industry in
utilities and transportation that experienced a drop in unit labor costs. Four industries had
unit labor cost increases below 2.0 percent annually.
From 1987 to 2002, all but one of the information industries posted productivity
gains. The largest increase, 17.2 percent per year, was in software publishers. Cable and
other program distribution registered the sole decline in output per hour (-0.6 percent per
year). Unit labor costs fell in three industries. In software publishers, unit labor costs
contracted by 8.8 percent per year.
Output per hour increased in 9 of the 11 remaining service-providing industries
over the long term. Among the largest industries, productivity rose 1.3 percent per year
in traveler accommodations, 2.3 percent annually in commercial banking, and 1.1 percent
per year in automotive repair and maintenance. All 11 industries experienced rising unit
labor costs. The increases ranged from 1.2 percent per year to 5.3 percent per year.
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* Labor productivity and associated series through 2001 for all 3- *
* and 4-digit NAICS manufacturing industries and through 2002 for *
* wholesale trade, retail trade, and food services industries have been *
* released previously. Selected 5- and 6-digit industries have been *
* available by request. *
* Data have been revised for labor productivity and related series for *
* many industries including those in the manufacturing, retail trade, and *
* wholesale trade industries not presented in this release. Labor *
* productivity and related data were first published on a NAICS basis at the *
* 4-digit level. Measures were developed later at the 5- and 6-digit level. *
* The aggregation of employment and hours data from the detailed 5- and 6- *
* digit level resulted in revisions to the employment and hours data for the *
* industries at the 4-, 3-, and 2-digit NAICS levels. In addition, data *
* were revised for some industries in the information sector and in retail *
* industry groups NAICS 453 and 454 to incorporate modifications and *
* improvements to data and methodology. The latest data are on the Labor *
* Productivity and Costs website (http://www.bls.gov/lpc/home.htm). *
******************************************************************************
Technical Note
Data in this news release are based on the North American Industry Classification
System (NAICS), which replaced the Standard Industrial Classification (SIC) system as
the basis for assigning and tabulating data by industry. The data in this news release and
revised data on the BLS website replace the series published in Table 46 of the Monthly
Labor Review and in the news release Productivity and Costs by Industry, 2001 (released
September 18, 2003). All of the measures for 2002 in this news release are preliminary
and subject to revision.
Overall, the industry productivity series account for 57 percent of the 4-digit
NAICS industries in the nonfarm business sector of the economy. Expansion of industry
coverage within the service-providing sector will continue.
NAICS-based measures and source data
The NAICS classification system is the product of a cooperative effort on the part
of the statistical agencies of the United States, Canada, and Mexico. The NAICS differs
from the SIC in that it uses a production-oriented approach to categorize economic units,
focusing on how products and services are created in contrast to the SIC focus on what
was produced. The structure of the NAICS system also is different from that of the SIC,
with a greater emphasis on emerging industries and service-providing industries. Under
NAICS, some detailed industries that existed under the SIC were collapsed or combined
with other industries, while other new industries were added. Treatment of auxiliaries
also changed under NAICS: NAICS classifies auxiliary units involved in activities such
as transportation and warehousing; accounting, bookkeeping, and payroll services; and
general management into specialized industries rather than including them in the
manufacturing, trade, or service industries they support (as in the SIC). As a result of
these changes, many of the NAICS industries are significantly different from those in the
SIC system.
Industry output indexes are prepared from basic data published by various public
and private agencies, using the greatest level of detail available. Data from the Bureau of
the Census, U.S. Department of Commerce, are used extensively in developing output
series for manufacturing, trade, and service-providing industries, as well as in developing
compensation and unit labor cost series for manufacturing industries. Census Bureau
data for years prior to 1997 were classified according to the Standard Industrial
Classification (SIC) system. The 1997 Economic Censuses provided data on a NAICS
basis, and data classified according to NAICS began to be provided in subsequent Annual
Survey reports beginning in 1998 or 1999. Some data for wholesale and retail trade
industries have been made available by the Census Bureau on a NAICS basis back to
1992.
The 1997 Economic Census questionnaires were designed to permit the
classification of each establishment according to both NAICS and SIC. As a result, the
Census Bureau tabulated and published 1997 Census data on both a NAICS and SIC
basis. The Bureau of Labor Statistics used these dual-coded data to calculate conversion
ratios relating NAICS values to SIC values, and the ratios were used to convert data on
receipts, value of shipments, inventories, and labor compensation for SIC-based
industries to estimates for NAICS-based industries for years prior to 1997.
The labor series used in the industry productivity measures are based primarily on
employment and average weekly hours data from the Bureau�s Current Employment
Statistics (CES) survey and the Current Population Survey (CPS). Other sources are the
Association of American Railroads, the Department of Transportation, and the U.S.
Postal Service. The CES data were published on a 2002 NAICS basis with the release of
May 2003 data in June 2003. Historical NAICS data back to 1990 were provided for all
of the CES series; data for years prior to 1990 were provided for some industries. CES
NAICS industry series not available back to 1987 were extrapolated back with estimates
calculated using conversion ratios derived from dual-coded first-quarter 2001 data from
the Covered Employment and Wages Program (ES-202). These ratios also were used to
convert historical ES-202 wage data from SIC to NAICS for use in the compensation and
unit labor cost measures for nonmanufacturing industries.
Productivity measurement
The industry labor productivity measures describe the relationship between output
and the labor time involved in its production. They show the changes from period to
period in the amount of goods and services produced per hour. Although these measures
relate output to hours of employees or all persons engaged in an industry, they do not
measure the specific contribution of labor, capital, or any other factor of production.
Rather, they reflect the joint effects of many influences, including changes in technology;
capital investment; level of output; utilization of capacity, energy, and materials; the
organization of production; managerial skill; and the characteristics and effort of the
workforce.
The indexes of industry output used in measuring labor productivity and unit
labor costs are, wherever possible, calculated with a Tornqvist formula. This formula
aggregates the growth rates of the various industry products between two periods using
the products� shares in industry value of production, averaged over the two periods, as
weights.
Year-to-year movements in productivity measures for some industries might be
erratic, particularly in the smaller industries. The annual changes in an industry�s output
and use of labor may reflect cyclical changes in the economy rather than long-term
trends. Also, annual productivity indexes are based on sample data, which are likely to
differ from data generated by a census of establishments in the industry. As a result,
long-term trends tend to be more reliable indicators of the performance of an industry
than are the year-to-year changes.
Unit labor cost measurement
The unit labor cost series in this release describe the cost of labor input required
to produce one unit of output. Unit labor costs are calculated as the ratio of current dollar
labor compensation to constant dollar output. The indexes of unit labor costs for each
industry are computed by dividing an index of current dollar compensation by an index of
constant dollar output.
Compensation is a measure of the cost to the employer of securing the services of
labor. It is defined as payroll plus supplemental payments. Payroll includes salaries,
wages, commissions, dismissal pay, bonuses, vacation and sick leave pay, and
compensation in kind. Supplemental payments are divided into legally required
expenditures and payments for voluntary programs. The legally required expenditures
include employers� contributions to Social Security, unemployment insurance taxes, and
workers� compensation. Payments for voluntary programs include all programs not
specifically required by legislation, such as the employer portion of private health
insurance and pension plans.
Productivity and unit labor cost data for industries can be obtained in several
ways: by visiting the Labor Productivity and Costs web site
(http://www.bls.gov/lpc/home.htm); by calling the Division of Industry Productivity
Studies (202-691-5618); or by sending a request by e-mail (dipsweb@bls.gov).
Historical productivity and related series for 3- and 4-digit SIC industries through 2000
continue to be maintained, but will no longer be updated. SIC-based industry data are
available on the BLS web site or by request.
Information in this release will be made available to sensory impaired individuals
upon request. Voice phone: 202-691-5200; TDD message referral phone number: 1-800-
877-8339.
Table 1. Annual percent change in output per hour and related series: selected service-providing and mining
industries, 1987-02 and 2001-02
Annual percent change, 1987-02 Annual percent change, 2001-02
2002 -------------------------------- --------------------------------
NAICS Industry Employment Output Output
code (thousands) per hour Output Hours per hour Output Hours
Mining
21 Mining 512 1.8 -0.1 -1.9 4.3 -2.7 -6.7
211 Oil and gas extraction 122 2.6 -0.8 -3.4 1.6 -2.3 -3.9
212 Mining, except oil and gas 211 3.2 0.9 -2.2 2.5 -3.7 -6.0
2121 Coal mining 74 4.4 0.1 -4.2 -1.9 -5.0 -3.1
2122 Metal ore mining 29 4.8 2.7 -2.0 9.2 -5.8 -13.7
2123 Nonmetallic mineral mining and quarrying 107 1.1 0.8 -0.3 4.5 -1.6 -5.8
Utilities
2211 Power generation and supply 434 3.1 1.4 -1.7 -3.8 -5.7 -1.9
2212 Natural gas distribution 115 3.7 1.8 -1.9 4.4 3.3 -1.1
Transportation and Warehousing
481 Air transportation 509 1.6 2.9 1.3 12.2 -0.8 -11.6
482111 Line-haul railroads 180 5.5 2.2 -3.1 8.3 0.2 -7.5
48412 General freight trucking, long-distance 807 2.2 3.4 1.2 5.0 1.1 -3.7
491 Postal service 842 1.0 1.5 0.5 0.9 -2.9 -3.7
Information
511 Publishing 964 3.8 5.4 1.5 3.7 -2.3 -5.8
5111 Newspaper, book, and directory publishers 711 0.2 0.1 -0.2 1.6 -3.5 -5.0
5112 Software publishers 253 17.2 28.2 9.4 4.7 -3.2 -7.5
51213 Motion picture and video exhibition 173 1.0 3.3 2.3 -0.3 3.8 4.0
5151 Radio and television broadcasting 241 0.2 0.5 0.3 6.4 2.6 -3.6
5152 Cable and other subscription programming 93 1.7 7.9 6.1 4.9 6.3 1.3
5171 Wired telecommunications carriers 651 5.8 5.3 -0.5 8.0 -5.6 -12.6
5172 Wireless telecommunications carriers 197 6.2 23.8 16.5 11.2 12.0 0.7
5175 Cable and other program distribution 130 -0.6 5.3 6.0 6.7 3.9 -2.6
Finance and Insurance
52211 Commercial banking 1278 2.3 2.0 -0.3 2.2 2.8 0.6
Real Estate and Rental and Leasing
532111 Passenger car rental 125 1.5 3.8 2.4 1.1 -5.5 -6.5
53212 Truck, trailer and RV rental and leasing 60 2.5 2.7 0.2 -2.3 -2.0 0.3
Professional and Technical Services
541213 Tax preparation services 101 -0.3 4.0 4.3 17.8 4.4 -11.4
54181 Advertising agencies 190 1.7 1.8 0.2 6.2 -3.0 -8.7
Accommodation and Food Services
7211 Traveler accommodations 1752 1.3 2.4 1.1 2.1 -2.8 -4.8
Other Services
8111 Automotive repair and maintenance 1150 1.1 2.8 1.7 -5.2 -4.2 1.0
81211 Hair, nail, and skin care services 853 1.5 2.8 1.3 -4.8 3.3 8.5
81221 Funeral homes and funeral services 105 -0.9 0.5 1.4 -3.2 -4.4 -1.2
8123 Drycleaning and laundry services 409 1.4 1.2 -0.2 -0.7 -2.9 -2.2
81292 Photofinishing 93 1.8 -0.6 -2.4 16.1 2.1 -12.1
Table 2. Annual percent change in total compensation, output, and unit labor costs: selected service-providing and mining
industries, 1987-02 and 2001-02
Annual percent change, 1987-02 Annual percent change, 2001-02
2002 ------------------------------------ ------------------------------------
NAICS Industry Employment Total Unit labor Total Unit labor
code (thousands) compensation Output costs compensation Output costs
Mining
21 Mining 512 2.3 -0.1 2.4 -4.3 -2.7 -1.6
211 Oil and gas extraction 122 2.8 -0.8 3.7 -1.7 -2.3 0.7
212 Mining, except oil and gas 211 0.4 0.9 -0.5 -3.7 -3.7 0.0
2121 Coal mining 74 -2.0 0.1 -2.1 -1.4 -5.0 3.8
2122 Metal ore mining 29 2.0 2.7 -0.7 -11.1 -5.8 -5.6
2123 Nonmetallic mineral mining and quarrying 107 3.2 0.8 2.4 -2.8 -1.6 -1.2
Utilities
2211 Power generation and supply 434 2.8 1.4 1.4 2.2 -5.7 8.3
2212 Natural gas distribution 115 3.5 1.8 1.7 -2.0 3.3 -5.2
Transportation and Warehousing
481 Air transportation 509 4.8 2.9 1.8 -3.2 -0.8 -2.5
482111 Line-haul railroads 180 0.4 2.2 -1.8 0.0 0.2 -0.2
48412 General freight trucking, long-distance 807 4.3 3.4 0.9 -2.2 1.1 -3.2
491 Postal service 842 4.6 1.5 3.1 0.4 -2.9 3.4
Information
511 Publishing 964 7.1 5.4 1.7 -8.0 -2.3 -5.8
5111 Newspaper, book, and directory publishers 711 4.0 0.1 4.0 -4.0 -3.5 -0.6
5112 Software publishers 253 16.9 28.2 -8.8 -12.6 -3.2 -9.7
51213 Motion picture and video exhibition 173 3.8 3.3 0.6 6.6 3.8 2.8
5151 Radio and television broadcasting 241 4.3 0.5 3.8 -3.7 2.6 -6.1
5152 Cable and other subscription programming 93 10.9 7.9 2.8 3.6 6.3 -2.6
5171 Wired telecommunications carriers 651 3.4 5.3 -1.8 -9.3 -5.6 -3.9
5172 Wireless telecommunications carriers 197 19.8 23.8 -3.2 -7.0 12.0 -16.9
5175 Cable and other program distribution 130 9.0 5.3 3.5 1.9 3.9 -2.0
Finance and Insurance
52211 Commercial banking 1278 5.5 2.0 3.4 8.4 2.8 5.4
Real Estate and Rental and Leasing
532111 Passenger car rental 125 6.2 3.8 2.3 -3.4 -5.5 2.2
53212 Truck, trailer and RV rental and leasing 60 3.9 2.7 1.2 1.2 -2.0 3.3
Professional and Technical Services
541213 Tax preparation services 101 9.5 4.0 5.3 7.1 4.4 2.6
54181 Advertising agencies 190 4.9 1.8 3.0 -11.1 -3.0 -8.4
Accommodation and Food Services
7211 Traveler accommodations 1752 5.6 2.4 3.1 -2.1 -2.8 0.8
Other Services
8111 Automotive repair and maintenance 1150 5.4 2.8 2.4 3.5 -4.2 8.1
81211 Hair, nail, and skin care services 853 5.5 2.8 2.6 12.2 3.3 8.6
81221 Funeral homes and funeral services 105 5.1 0.5 4.6 1.9 -4.4 6.6
8123 Drycleaning and laundry services 409 3.2 1.2 2.0 1.5 -2.9 4.5
81292 Photofinishing 93 2.4 -0.6 3.1 -4.8 2.1 -6.7