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Internet address:	        http://www.bls.gov/mfp
Historical, technical		USDL 06-2040
information:	(202) 691-5606	For Release: 10:00 AM EST
Media contact:	(202) 691-5902	December 6, 2006


MULTIFACTOR PRODUCTIVITY TRENDS IN MANUFACTURING, 2002, 2003 AND 2004


The Bureau of Labor Statistics of the U.S. Department of Labor today reported
multifactor productivity data�output per unit of combined inputs�for the 
manufacturing sector and for durable goods, nondurable goods, and three-digit 
(NAICS) manufacturing industries through the year 2004.  

The annual rates of multifactor productivity change in manufacturing were:

                           2001-02                2002-03             2003-04
Manufacturing	             3.9                    4.0                -1.0
Durable manufacturing	     4.3                    4.5                -1.0
Nondurable manufacturing     3.0                    3.1                -0.9

In all three sectors, manufacturing, durable manufacturing, and nondurable 
manufacturing, multifactor productivity growth was just slightly faster in 
2003 than in 2002.   Multifactor productivity fell in all three sectors in 
2004.  The 2001-02, 2002-3 and 2003-4 annual changes are summarized in table 
A, and further detail and historical measures are shown in tables 1 through 3.

Multifactor productivity is designed to measure the joint influences of 
economic growth on technological change, efficiency improvements, returns 
to scale, reallocation of resources, and other factors, allowing for the 
effects of capital and labor.  Multifactor productivity, therefore, differs
from labor productivity (output per hour worked) measures that are published 
quarterly by BLS since it includes information on capital services and other
data that are not available on a quarterly basis.  

Multifactor productivity measures for the manufacturing sector are now 
developed from data based on the 1997 North American Industry Classification
System (NAICS).  These measures are not comparable with the measures for the 
manufacturing sectors previously reported on a 1987 Standard Industrial 
Classification (SIC) basis.  This is because manufacturing multifactor 
productivity measures are aggregated from industry detail data that are 
largely unavailable on a NAICS basis before 1987.

The data sources and methods used in the preparation of the manufacturing
series differ from those used in preparing the private business and private
nonfarm business series published elsewhere, and these measures are not 
directly comparable.  See BLS News Release USDL 06-1510, Preliminary 
Multifactor Productivity Trends, 2005, www.bls.gov/news.release/pdf/prod3.pdf,
and see the Summary of Methods (pp.3-5) for further information on data 
sources and methods.


Table A.  Productivity and related data in manufacturing, percent changes, 
          1987-2004		
								
(percent per year)								
                                1987- 1987- 1990- 1995- 2000- 2001- 2002- 2003-
		                 04    90    95	   00    04    02    03    04	
								 
Productivity								 
   Multifactor productivity1 	 1.3   0.2   1.2   2.0	 1.4   3.9   4.0  -1.0
								
   Output per hour of            3.6   1.7   3.3   4.7 	 4.1   7.1   6.1   1.7
   all persons	 
	 							 
   Output per unit of            0.0  -0.1   0.6   0.4  -1.3  -1.0   0.9   1.5
   capital services	
   								
Sectoral Output	                 2.4   2.1   3.3   4.5  -0.9  -0.6   1.0   1.3
								
Inputs								
   Hours2	                -1.2   0.4  -0.1  -0.2  -4.8  -7.1  -4.8  -0.4
   Capital services	         2.5   2.2   2.7   4.1   0.4   0.4   0.1  -0.2
   Energy	                -0.8   1.9   1.6  -2.5  -3.4  -1.5  -7.5   5.4
   Non-energy materials	         2.2   1.6   3.6   4.9  -2.3  -5.4  -3.6   6.9
   Purchased business services	 2.5   5.4   3.0   2.4  -0.1  -2.5  -1.0   2.3
  
   Combined inputs3	         1.1   2.0   2.1   2.4	-2.2  -4.3  -2.9   2.3
								
1. Output per unit of combined hours, capital, energy, materials, and business 
   services inputs.
2. Hours at work of all persons. 
3. The growth rate of each input is weighted by its share of nominal costs.

Manufacturing productivity in 2002, 2003, and 2004

Changes in 2002.  Multifactor productivity in manufacturing rose 3.9 percent in
2002.   Until a slightly larger increase occurred in 2003, it had been the 
largest rate of increase in the time series, which goes back to 1987.  The 
multifactor productivity gain in 2002 reflected a 0.6 percent decline in 
sectoral output and a 4.3 percent decline in combined inputs.  Capital services
continued to grow in 2002, but at a much more modest rate, posting a 0.4 
percent advance.  The decline in hours accelerated in 2002, falling 7.1 percent.  

Changes in 2003.  Multifactor productivity in manufacturing grew at an annual
rate of 4.0 percent in 2003, about the same as 2002.   Combined inputs declined
2.9 percent but this decline was offset by a 1.0 percent increase in sectoral 
output, the first increase in three years.  Growth in capital services slowed 
to 0.1 percent, the slowest growth since the current series began in 1987. 
Hours declined 4.8 percent. 

Changes in 2004.  Multifactor productivity in manufacturing fell 1.0 percent 
in 2004, the steepest decline since a 1.3 percent drop in 2001.   The decline
was the result of a 1.3 percent increase in sectoral output that was more than
offset by a 2.3 percent increase in combined inputs.  Capital services declined
0.2 percent, the first decline in the current time series.  Hours decreased 0.4
percent, much less than in the previous two years.   Materials grew 6.9 
percent, the first increase since 1999 and the largest since 1997.  

Historical trends in manufacturing

Labor productivity (output per hour worked) differs from multifactor 
productivity (output per unit of combined inputs) in the treatment of both
capital and intermediate inputs (energy, materials, and business services).
Labor productivity measures do not explicitly account for the effects of 
capital nor do they account for changes in the effects of intermediate inputs
on output growth.  As a result, changes in input intensity 
(the input-hours ratio) can influence labor productivity growth.  In contrast,
multifactor productivity treats capital and intermediate inputs as explicit
factors of production and, therefore, is net of changes in input intensity.  
Historical trends in labor productivity growth can be viewed as the sum of 
five components: multifactor productivity growth, the contribution of increased
capital intensity, the contribution of increased energy intensity, the 
contribution of increased materials intensity and the contribution of increased
business services intensity (see table B).

The contribution of input intensity equals the change in the input-hours ratio
multiplied by the input's cost share.  Historically the labor share is about a
third of total cost, the capital share about a sixth, the materials share a 
little over a fourth of total cost, and the business services share a little 
less than a fourth.  The energy share is historically only about 3 percent of
total cost.

Multifactor productivity grew 1.3 percent annually between 1987 (the starting
point of the manufacturing series) and 2004 (see table A).  Sectoral output 
increased at a 2.4 percent annual rate, and combined inputs rose 1.1 percent 
per year (table A).   Of the 3.6 percent growth rate in output per hour 
(labor productivity), 1.3 percent can be attributed to increases in multifactor
productivity, 0.6 percent to the contribution of capital intensity 
(see table B), 0.9 percent to changes in materials intensity, and 0.8 percent
to changes in business services intensity.  Energy was a very small share of
total inputs; therefore it made no discernable contribution to output per hour.


Table B.  Rates of growth in output per hour of all persons; the contributions
of capital intensity, energy, materials, and business services; and multifactor
productivity, manufacturing sector, 1987 to 2004


(percent per year)								
 	
 	                        1987- 1987- 1990- 1995- 2000- 2001- 2002- 2003-
		                 04    90    95	   00    04    02    03    04	

Manufacturing	 				 			
					 			
Output per hour of               3.6   1.7   3.3   4.7	 4.1	7.1  6.1   1.7
all persons 	
								
Contribution of capital          0.6   0.3   0.4   0.7	 0.8	1.2  0.8   0.0
intensity1	
								
   Contribution of information	 0.2   0.1   0.2   0.4	 0.2	0.3  0.2   0.0
   processing equipment and								
   Software2								
							 	
   Contribution of all other     0.3   0.1   0.2   0.4	 0.6	1.0  0.6   0.0
   capital services	
								
Contribution of energy           0.0   0.0   0.0  -0.1	 0.0	0.1 -0.1   0.1
intensity3	
								
Contribution of materials        0.9   0.3   1.0   1.4	 0.7	0.5  0.3   1.9
intensity4	
				 				
Contribution of business 	 0.8   0.9   0.6   0.6	 1.1	1.2  1.0   0.6
services Intensity5								
								
Multifactor productivity6	 1.3   0.2   1.2   2.0	 1.4	3.9  4.0  -1.0
 		 	 	 		 	 	 

1. Growth rate in capital services per hour multiplied by capital's share of 
   current dollar costs.
2. Growth rate of information processing equipment and software per hour 
   multiplied by its share of total costs.
3. Growth rate in energy services per hour multiplied by energy�s share of 
   current dollar costs.
4. Growth rate in materials services per hour multiplied by materials� share of
   current dollar costs.
5. Growth rate in business services per hour multiplied by business services� 
   share of current dollar costs.
6. Output per unit of combined inputs.


From 1995 to 2000, multifactor productivity accelerated more rapidly than in
previous periods, growing at 2.0 percent per year (see Table A).  Sectoral 
output growth increased to 4.5 percent per year, while combined inputs 
continued to advance at 2.4 percent per year, a slightly higher rate than the
2.1 percent rate of growth of the early 1990s.  Hours declined slightly during
the 1995-2000 period, but the increase in the growth rate of capital services,
4.1 percent, was notable.   The use of energy inputs declined 2.5 percent, 
while the use of materials inputs accelerated to 4.9 percent.  Business 
services inputs grew less rapidly in this period, averaging 2.4 percent.  
The contribution of capital intensity accelerated to 0.7 percent (see Table B).
As in the early 1990�s, information processing equipment and software 
contributed about half of this growth.  Materials intensity continued to
accelerate, growing 1.4 percent during this period.  The contribution of 
business services rose 0.6 percent, the same as in the previous period.

In the 2000-2004 period, productivity measures slowed somewhat, while still 
increasing slightly faster than in the pre-1995 period.  Multifactor 
productivity growth increased 1.4 percent, down from 2.0 percent in the
previous period.  Labor productivity slowed to a still robust growth rate 
of 4.1 percent.  The contribution of capital intensity growth gained 0.1
percentage points from the previous period to 0.8 percent.  The growth of 
the contribution of other capital services rose to 0.6 percent while the 
contribution of information processing equipment grew 0.2 percent.  The
contribution of materials dropped to a growth rate of 0.7 percent from 1.4 
percent in the previous period.  The contribution of business services 
intensity accelerated during the 2000-2004 period, growing 1.1 percent.

Among detailed manufacturing industries, most durable goods and nondurable
goods industry groups experienced multifactor productivity gains in 2002 
and 2003 (table 3) and a drop-off in productivity gains in 2004.  The 
exceptions were two nondurable goods industries: food, beverage and tobacco
products and printing and related support activities; and three durable goods
industries: nonmetallic mineral products, primary metals, and furniture and 
related products.  In these five industries multifactor productivity growth 
accelerated in 2004.  Eight of the 18 detailed industries experienced 
multifactor productivity declines in 2004.

Over the 1987-2004 period, multifactor productivity advanced most rapidly in
the computer and electronic products industry.  This industry�s 9.4 percent 
growth during this period is 8 percentage points higher than the industry with
the next highest growth rate, miscellaneous manufacturing.  In the 1995-2000 
period, multifactor productivity grew very rapidly in the computer and 
electronic products industry, 15.8 percent per year.  In the 2000-2004 period, 
the growth rate slowed to 4.7 percent.  Food, beverage and tobacco products; 
machinery; and electrical equipment, appliances and components were the three
industries to experience a multifactor productivity decline over the entire 
1987-2004 period.

Summary of Methods for the manufacturing sector and manufacturing industries

The manufacturing multifactor productivity measures describe the relationship 
between output in real terms and the inputs involved in its production.  They
do not measure the specific contributions of labor, capital, or any other 
factor of production.  Rather, multifactor productivity is designed to measure 
the joint influences on economic growth of technological change, efficiency 
improvements, returns to scale, reallocation of resources due to shifts in 
factor inputs across industries, and other factors.  The multifactor 
productivity indexes are derived by dividing an output index by an index of 
the combined input of labor, capital services, energy, non-energy materials,
and business service inputs.  

The multifactor productivity measures for manufacturing differ in several
ways from those for private business and private nonfarm business in their 
treatment of labor input, output, and classes of factor inputs.  First, 
the manufacturing measure of labor input is a direct aggregate of hours. 
This is in contrast to the major sector measures for which estimates of the
effects of changing labor composition have been developed. 

Next, the output concept used for multifactor productivity in manufacturing is
�sectoral output.�  Sectoral output is similar to gross output, but excludes 
shipments from one establishment to another within the same manufacturing 
industry or sector.  In contrast, the output concept used for private business
and nonfarm business is �gross product originating�.  Gross product originating
in private business equals gross domestic product in the economy less general
government, government enterprises, private households (including the rental 
value of owner-occupied real estate), and non-profit institutions.  Gross 
product originating excludes intermediate transactions between businesses.

The output index for manufacturing is computed using a chained superlative 
index (Tornqvist) of 3-digit NAICS industry outputs.   Industry output is 
measured as sectoral output, the total value of goods and services leaving the
industry. Wherever possible, the indexes of industry output are calculated with
a T�rnqvist formula. This formula aggregates the growth rates of the various 
industry outputs between two periods, using their relative shares in industry
value of production, averaged over the two periods, as weights.  Industry 
output measures for manufacturing industries are constructed using data from
the economic censuses and annual surveys of the Bureau of the Census, U.S. 
Department of Commerce, together with information on price changes, primarily
from BLS. 

The resulting manufacturing multifactor productivity measure compares what
is produced in the manufacturing sector for use outside of manufacturing with
the inputs used in the manufacturing process obtained from outside of 
manufacturing.  The comparison excludes flows of intermediate inputs between 
manufacturing establishments from measures of both output and inputs.  
However, the comparison does include capital service inputs and capital goods 
produced, even when these goods are produced and consumed in manufacturing.    

Multifactor productivity in manufacturing compares "sectoral output" to three 
classes of inputs: 1) hours at work of labor employed within manufacturing; 
2) capital services employed by manufacturing establishments; and 3) purchases
of energy, materials, and business services from outside of manufacturing 
(intermediates). 

Hours paid of production workers are largely obtained from the Current 
Employment Statistics (CES) survey.  These hours of employees are then 
converted to an at-work basis by using information from the Employment Cost 
Index (ECI) of the National Compensation Survey (NCS) and the Hours at Work
Survey.  Hours at work for nonproduction workers are derived using data from
the Current Population Survey (CPS), the CES, and the NCS.  The hours at work 
of proprietors are derived from the CPS.  Hours at work data reflect 
Productivity and Costs data as of the February 2, 2006 news release.  It
does not reflect benchmark revisions to the CES survey and other revisions 
to hours released on February 3, 2006.  The construction of hours at work 
follows the methods used in the private business sector described in 
USDL 06-1510, Preliminary Multifactor Productivity Trends, 2005, 
http://www.bls.gov/news.release/pdf/prod3.pdf, except that hours in 
manufacturing are directly aggregated and do not include the effects of 
changing labor composition. 

Capital input measures the services derived from the stock of physical assets
and software.  The assets included are fixed business equipment, structures,
inventories, and land.  Among equipment, BLS provides additional detail for
information processing equipment and software (IPES).  IPES is composed of four
broad classes of assets: computers and related equipment, software, 
communications equipment, and other IPES equipment.  Computers and related 
equipment includes mainframe computers, personal computers, printers, 
terminals, tape drives, storage devices, and integrated systems.  Software is
comprised of pre-packaged, custom, and own-account software.  Communications 
equipment is not further differentiated.  Other IPES includes medical equipment
and related instruments, electromedical instruments, nonmedical instruments,
photocopying and related equipment, and office and accounting machinery.  

The aggregate capital input measures are obtained by Tornqvist aggregation of
the capital stocks for each asset type within each of the eighteen 
manufacturing NAICS industry groupings using estimated rental prices for each
asset type.  Each rental price reflects the nominal rate of return to all
assets within the industry and rates of economic depreciation and revaluation
for the specific asset; rental prices are adjusted for the effects of taxes. 
Data on investments in physical assets and software are obtained from BEA.  
Nonfarm industry detail for land is based on IRS book value data.  
Current-dollar gross product originating (GPO) data, obtained from BEA,
are used in estimating capital rental prices.

In manufacturing, intermediates are the largest input in terms of costs. 
Furthermore, research has shown that substitution among inputs, including
intermediates, affects productivity change.  Therefore, it is important to 
include intermediates in productivity measures at the level of manufacturing.
In contrast, the more aggregate productivity measures compare "value-added"
output with two classes of inputs, capital and labor.  Because of these 
differences in methods, productivity change in manufacturing cannot be directly
compared with changes in private business or private nonfarm business.  

Intermediate inputs (energy, materials, and purchased business services) 
are obtained from BEA based on BEA annual input-output tables.  Tornqvist 
indexes of each of these three input classes are derived at the 3-digit NAICS
level and then aggregated to total manufacturing.  As with the sectoral output 
measures, materials inputs are adjusted to exclude transactions between 
establishments within the same sector.

The five input indexes (capital services, hours, energy, materials, and 
purchased business services) are combined using Tornqvist aggregation, 
employing weights that represent each component's share of total costs.  
Total costs are defined as the value of manufacturing sectoral output.  
The index uses changing weights: The share in each year is averaged with the 
preceding year's share.

Multifactor productivity data for the 1987-2004 period reflect a number of 
changes in source data.   For example, current NAICS input-output tables and
revised BEA chain-type price and indexes for intermediate inputs (energy, 
materials, and business services), 
(see tables at http://www.bea.gov/bea/dn2.htm, Gross Domestic Product by 
Industry) have been incorporated.  

BLS built multifactor productivity measures from three-digit NAICS detail.
Most of the critical data used to calculate these measures were not 
reported on a NAICS basis for years prior to 1998.  Detailed GDP by industry
data were available from 1998 forward but from 1987 to1997 many of the income
components needed to construct capital rental prices were obtained by applying
1997 SIC-to-NAICS conversion factors to SIC data and adjusting to the estimated
NAICS totals.  A similar procedure was applied to manufacturing inventories, 
energy, materials, and business services.    Land data were only available from
1998 to 2002 on a NAICS basis.  As a consequence, land estimates from 1987 to
1997 were calculated using a combination of SIC to NAICS conversion factors and
more detailed IRS data.  Data for 2003 and 2004 were extrapolated using 
detailed IRS data for 2002. 

Comprehensive tables containing additional data beyond the scope of this press
release are available upon request at 202-691-5606 or at 
http://www.bls.gov/mfp/mprdload.htm .  More detailed information on methods,
limitations, and data sources of capital and labor are provided in BLS 
Bulletin 2178 (September 1983), "Trends in Multifactor Productivity, 1948-81."
Methods for measuring manufacturing multifactor productivity are discussed in 
"Measurement of productivity growth in U.S. manufacturing� in the July 1995 
issue of the Monthly Labor Review (see http://www.bls.gov/mfp/mprgul95.pdf ). 
Additional data not contained in the release can be obtained in print at 
202-691-5606 or at http://www.bls.gov/mfp .
Summary of Methods for the manufacturing sector and manufacturing industries

The manufacturing multifactor productivity measures describe the relationship
between output in real terms and the inputs involved in its production.  
They do not measure the specific contributions of labor, capital, or any other
factor of production.  Rather, multifactor productivity is designed to measure
the joint influences on economic growth of technological change, efficiency
improvements, returns to scale, reallocation of resources due to shifts in 
factor inputs across industries, and other factors.  The multifactor 
productivity indexes are derived by dividing an output index by an index of the
combined input of labor, capital services, energy, non-energy materials, and 
business service inputs.  

The multifactor productivity measures for manufacturing differ in several ways 
from those for private business and private nonfarm business in their treatment
of labor input, output, and classes of factor inputs.  First, the manufacturing
measure of labor input is a direct aggregate of hours.  This is in contrast to 
the major sector measures for which estimates of the effects of changing labor
composition have been developed. 



Next, the output concept used for multifactor productivity in manufacturing is
�sectoral output.�  Sectoral output is similar to gross output, but excludes 
shipments from one establishment to another within the same manufacturing 
industry or sector.  In contrast, the output concept used for private business
and nonfarm business is �gross product originating�.  Gross product originating
in private business equals gross domestic product in the economy less general
government, government enterprises, private households (including the rental 
value of owner-occupied real estate), and non-profit institutions.  Gross 
product originating excludes intermediate transactions between businesses.

The output index for manufacturing is computed using a chained superlative 
index (Tornqvist) of 3-digit NAICS industry outputs.   Industry output is 
measured as sectoral output, the total value of goods and services leaving the
industry. Wherever possible, the indexes of industry output are calculated with
a T�rnqvist formula. This formula aggregates the growth rates of the various 
industry outputs between two periods, using their relative shares in industry 
value of production, averaged over the two periods, as weights.  Industry 
output measures for manufacturing industries are constructed using data from 
the economic censuses and annual surveys of the Bureau of the Census, 
U.S. Department of Commerce, together with information on price changes, 
primarily from BLS. 

 The resulting manufacturing multifactor productivity measure compares what is
 produced in the manufacturing sector for use outside of manufacturing with the
 inputs used in the manufacturing process obtained from outside of 
 manufacturing.  The comparison excludes flows of intermediate inputs between
 manufacturing establishments from measures of both output and inputs.  
 However, the comparison does include capital service inputs and capital goods 
 produced, even when these goods are produced and consumed in manufacturing.    

Multifactor productivity in manufacturing compares "sectoral output" to three 
classes of inputs: 1) hours at work of labor employed within manufacturing; 
2) capital services employed by manufacturing establishments; and 3) purchases 
of energy, materials, and business services from outside of manufacturing 
(intermediates). 

Hours paid of production workers are largely obtained from the Current 
Employment Statistics (CES) survey.  These hours of employees are then 
converted to an at-work basis by using information from the Employment Cost 
Index (ECI) of the National Compensation Survey (NCS) and the Hours at Work 
Survey.  Hours at work for nonproduction workers are derived using data from 
the Current Population Survey (CPS), the CES, and the NCS.  The hours at work
of proprietors are derived from the CPS.  Hours at work data reflect 
Productivity and Costs data as of the February 2, 2006 news release.  It does 
not reflect benchmark revisions to the CES survey and other revisions to hours
released on February 3, 2006.  The construction of hours at work follows the 
methods used in the private business sector described in USDL 06-1510, 
Preliminary Multifactor Productivity Trends, 2005,
http://www.bls.gov/news.release/pdf/prod3.pdf, except that hours in 
manufacturing are directly aggregated and do not include the effects of 
changing labor composition. 




Capital input measures the services derived from the stock of physical assets 
and software.  The assets included are fixed business equipment, structures, 
inventories, and land.  Among equipment, BLS provides additional detail for 
information processing equipment and software (IPES).  IPES is composed of four
broad classes of assets: computers and related equipment, software, 
communications equipment, and other IPES equipment.  Computers and related 
equipment includes mainframe computers, personal computers, printers, 
terminals, tape drives, storage devices, and integrated systems.  Software is
comprised of pre-packaged, custom, and own-account software.  Communications 
equipment is not further differentiated.  Other IPES includes medical equipment
and related instruments, electromedical instruments, nonmedical instruments, 
photocopying and related equipment, and office and accounting machinery.  

The aggregate capital input measures are obtained by Tornqvist aggregation of
the capital stocks for each asset type within each of the eighteen 
manufacturing NAICS industry groupings using estimated rental prices for each
asset type.  Each rental price reflects the nominal rate of return to all 
assets within the industry and rates of economic depreciation and revaluation
for the specific asset; rental prices are adjusted for the effects of taxes.  
Data on investments in physical assets and software are obtained from BEA.  
Nonfarm industry detail for land is based on IRS book value data.  
Current-dollar gross product originating (GPO) data, obtained from BEA, are 
used in estimating capital rental prices.

In manufacturing, intermediates are the largest input in terms of costs.  
Furthermore, research has shown that substitution among inputs, including 
intermediates, affects productivity change.  Therefore, it is important to 
include intermediates in productivity measures at the level of manufacturing.
In contrast, the more aggregate productivity measures compare "value-added" 
output with two classes of inputs, capital and labor.  Because of these 
differences in methods, productivity change in manufacturing cannot be directly
compared with changes in private business or private nonfarm business.  

Intermediate inputs (energy, materials, and purchased business services) are
obtained from BEA based on BEA annual input-output tables.  Tornqvist indexes 
of each of these three input classes are derived at the 3-digit NAICS level 
and then aggregated to total manufacturing.  As with the sectoral output 
measures, materials inputs are adjusted to exclude transactions between 
establishments within the same sector.

The five input indexes (capital services, hours, energy, materials, and 
purchased business services) are combined using Tornqvist aggregation, 
employing weights that represent each component's share of total costs.  
Total costs are defined as the value of manufacturing sectoral output.  
The index uses changing weights: The share in each year is averaged with the 
preceding year's share.

Multifactor productivity data for the 1987-2004 period reflect a number of 
changes in source data.   For example, current NAICS input-output tables and 
revised BEA chain-type price and indexes for intermediate inputs (energy, 
materials, and business services), (see tables at 
http://www.bea.gov/bea/dn2.htm, Gross Domestic Product by Industry) have been
incorporated.  


BLS built multifactor productivity measures from three-digit NAICS detail.
Most of the critical data used to calculate these measures were not reported
on a NAICS basis for years prior to 1998.  Detailed GDP by industry data were
available from 1998 forward but from 1987 to1997 many of the income components
needed to construct capital rental prices were obtained by applying 1997 
SIC-to-NAICS conversion factors to SIC data and adjusting to the estimated 
NAICS totals.  A similar procedure was applied to manufacturing inventories, 
energy, materials, and business services.    Land data were only available 
from 1998 to 2002 on a NAICS basis.  As a consequence, land estimates from 
1987 to 1997 were calculated using a combination of SIC to NAICS conversion 
factors and more detailed IRS data.  Data for 2003 and 2004 were extrapolated
using detailed IRS data for 2002. 

Comprehensive tables containing additional data beyond the scope of this press
release are available upon request at 202-691-5606 or at 
http://www.bls.gov/mfp/mprdload.htm .  More detailed information on methods, 
limitations, and data sources of capital and labor are provided in BLS Bulletin
2178 (September 1983), "Trends in Multifactor Productivity, 1948-81."  Methods 
for measuring manufacturing multifactor productivity are discussed in 
"Measurement of productivity growth in U.S. manufacturing� in the July 1995 
issue of the Monthly Labor Review (see http://www.bls.gov/mfp/mprgul95.pdf ). 
Additional data not contained in the release can be obtained in print at 
202-691-5606 or at http://www.bls.gov/mfp .
Table 1.  Manufacturing Sector: Productivity and related measures, 1987-2004			
										
Indexes (2000=100)									
      
      Productivity	 	           Inputs
	
      Output  Output                                           Purc-    Comb-  
      per     per     Multi-   Sect-	   Cap-	 	       hased    ined
      hour    unit    factor   oral        ital                busi-    units 
      of all  of      Product- out-	   Serv-        Mater- ness     of all    
Year  persons capital ivity1   put2 Hours3 ices4 Energy ials   services inputs5  
										
1987  63.9   95.5    84.9     64.2   100.4   67.1   99.3  62.9	 65.3	 75.6
1988  65.2   98.8    86.4     67.5   103.4   68.3  103.3  63.8	 71.0	 78.1
1989  65.9   98.3    85.9     68.6   104.1   69.8  103.0  65.0	 75.3	 79.8
1990  67.3   95.3    85.3     68.3   101.5   71.7  105.2  66.0	 76.6	 80.1
1991  69.1   91.6    85.0     67.2    97.2   73.3  104.8  65.6	 76.0	 79.0
1992  71.8   92.4    84.5     69.4    96.7   75.1  103.8  71.3	 81.5	 82.1
1993  73.5   93.7    86.7     72.1    98.0   76.9  107.1  71.9	 81.7	 83.1
1994  76.1   96.7    89.1     76.4   100.3   78.9  110.4  74.8	 84.7	 85.7
1995  79.4   98.2    90.6     80.3   101.2   81.8  113.7  78.8	 88.9	 88.7
1996  82.4   97.7    91.0     83.1   100.8   85.1  110.3  86.0	 88.5	 91.3
1997  86.9  100.3    93.6     89.2   102.6   88.9  108.2  92.9	 92.1	 95.3
1998  91.7  100.5    95.8     93.8   102.3   93.3  105.4  97.7	 95.0	 97.9
1999  95.8  100.3    96.5     97.3   101.6   97.1  105.5 102.6	100.0	100.9
2000 100.0  100.0   100.0    100.0   100.0  100.0  100.0 100.0	100.0	100.0
2001 101.5   93.6    98.7     94.9    93.5  101.4   90.6  93.3	100.7	 96.2
2002 108.7   92.7   102.5     94.4    86.8  101.9   89.3  88.3	 98.2	 92.1
2003 115.3   93.5   106.6     95.3    82.6  102.0   82.5  85.1	 97.3	 89.4
2004 117.4   94.9   105.6     96.6    82.3  101.8   87.0  91.0	 99.5	 91.4

See footnotes following table 2.                                                                                                                                              
Source: Bureau of Labor Statistics

Table 2.  Manufacturing Sector: Productivity and related measures, 1988-2004			
										
Indexes (2000=100)									
      
      Productivity	 	           Inputs
	
      Output  Output                                           Purc-    Comb-  
      per     per     Multi-   Sect-	   Cap-	 	       hased    ined
      hour    unit    factor   oral        ital                busi-    units 
      of all  of      Product- out-	   Serv-        Mater- ness     of all    
Year  persons capital ivity1   put2 Hours3 ices4 Energy ials   services inputs5  
										

1988  2.1     3.4     1.8     5.2   3.1   1.7    4.0	1.4	8.7	3.4
1989  1.0    -0.6    -0.5     1.6   0.6	  2.2	-0.3	2.0	6.0	2.2
1990  2.1    -3.0    -0.7    -0.4  -2.4	  2.7	 2.1	1.4	1.7	0.4
1991  2.6    -3.9    -0.3    -1.7  -4.2   2.3	-0.4   -0.6    -0.7    -1.4
1992  3.9     0.9    -0.6     3.3  -0.5	  2.4	-0.9	8.7	7.2	4.0
1993  2.5     1.4     2.6     3.9   1.4	  2.4	 3.2	0.9	0.3	1.2
1994  3.5     3.2     2.7     5.9   2.4	  2.7	 3.1	3.9	3.8	3.2
1995  4.3     1.6     1.7     5.2   0.9	  3.6	 3.0	5.4	4.9	3.4
1996  3.9    -0.6     0.5     3.4  -0.4	  4.0	-3.0	9.2    -0.4	2.9
1997  5.4     2.7     2.8     7.4   1.8	  4.5	-1.9	8.0	4.0	4.4
1998  5.5     0.2     2.3     5.2  -0.3	  5.0	-2.7	5.2	3.2	2.8
1999  4.4    -0.2     0.8     3.8  -0.6	  4.0	 0.1	5.0	5.3	3.0
2000  4.4    -0.3     3.6     2.7  -1.6	  3.0	-5.2   -2.6	0.0    -0.8
2001  1.5    -6.4    -1.3    -5.1  -6.5	  1.4	-9.4   -6.7	0.7    -3.8
2002  7.1    -1.0     3.9    -0.6  -7.1	  0.4	-1.5   -5.4    -2.5    -4.3
2003  6.1     0.9     4.0     1.0  -4.8	  0.1	-7.5   -3.6    -1.0    -2.9
2004  1.7     1.5    -1.0     1.3  -0.4	 -0.2	 5.4	6.9	2.3	2.3


See footnotes following table 2.                                                                                                                                              
Source: Bureau of Labor Statistics

Table 3.  Manufacturing industries: Multifactor productivity trends. 1987-2004 

Average annual growth rates (percent)


Industry           1987-   1987-   1990-   1995-   2000-   2001-   2002-  2003-
                   2004    1990    1995    2000    2004    2002    2003   2004

								
Manufacturing 	      1.3    0.2    1.2	    2.0	    1.4	    3.9	   4.0	  -1.0
								 
Nondurable            0.2   -0.6    0.6    -0.3     1.0     3.0    3.1    -0.9
  manufacturing         
Food, beverage,	     -0.2   -1.7    1.5	   -1.8	    0.7	   -0.4	   0.5	   0.8
  and tobacco  
  products								
Textile mills  	      1.0    0.9    0.7	    1.4	    0.8	    3.0	   6.6	  -2.0
  and textile 
  product mills 							 	
Apparel, leather,     0.7    0.1    2.8	    0.7	   -1.5	   -5.5	   5.2	  -8.0
  and allied
  products								
								
Paper products	      0.0   -0.4   -0.1	    0.2	    0.3	    3.3	   1.5	   0.0
Printing and          0.4    0.6   -0.4	    0.4	    1.2	    2.3	   0.8	   3.6
  related support 
  activities	          
Petroleum and coal    0.1   -0.2    0.4	    0.2	   -0.1	    2.7	   8.2	  -7.1
  products	 
Chemicals products    0.0   -0.8   -0.8    -0.1	    1.8	    6.3	   2.0	   0.7
Plastics and rubber   0.8    0.7    0.6	    1.3	    0.5	    3.1	   1.9	  -0.6
  products  	 
								
Durable manufacturing 2.0    0.8    1.6	    3.6	    1.6	    4.3	   4.5	  -1.0
Wood products 	      0.0    1.0   -1.3	    0.1	    0.8	    1.9	   2.8	  -2.8
Nonmetallic mineral   1.0    0.3    1.0	    0.9	    1.7	    1.8	   2.8	   3.1
  products 	  
Primary metals        1.0    1.1    0.1	    0.5	    2.4	    3.4	   2.7	   6.6
Fabricated metal      0.3   -0.1    1.0	    0.1	   -0.1	    1.7	   3.5	  -1.8
  products 	 
Machinery 	     -0.7    1.0   -1.8	   -0.8	   -0.5	    1.3	   1.4	  -3.3
								
Computer and          9.4    5.6    9.5	   15.8	    4.7	    6.5	  10.4	   1.9
  electronicc 
  products	 
Electrical           -0.8   -2.2   -1.9	   -1.0	    1.8	    4.1	   3.0	   0.3
  equipment,
  appliances,	
  and components								
Transportation        0.0   -1.7   -0.2	    0.4	    1.2	    6.6	   3.2	  -4.0
  equipment 	
Furniture and         0.2   -0.8    0.6	    0.7	    0.0	    2.4	  -0.2	   1.3
  related products 	 
Miscellaneous         1.4    2.4    0.2	    1.9	    1.7	    1.2	   4.0	   2.9
  manufacturing   	 


Note:  Multifactor productivity measures by industry are not directly 
comparable to measures for aggregate manufacturing because industry measures 
exclude transactions only within the specific industry while the aggregate 
manufacturing measures also exclude transactions between all manufacturing 
industries. 
         Footnotes, Tables 1-2
         
Source:  Output data are from the Bureau of the Census, U.S. Department of 
Commerce, and 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.  See also Summary of Methods in this release.
	  
	  
(1) Sectoral output per combined units of capital, hours, energy, non-energy
    materials, and purchased business services. 
	  
(2) Manufacturing gross output excluding transactions between manufacturing
    establishments, superlative chained index.
	  
(3) Hours at work of all persons.
	  
(4) A measure of the flow of capital services used in the sector.
	  
(5) Combined units of capital services, hours, energy, non-energy materials, 
    and purchased business services, superlative chained index.