Copper Foundries (Except
Die-Casting)
1997 Economic Census
Manufacturing
Industry Series
1997
Issued September 1999
EC97M-3315G
U.S. Department of Commerce
Economics and Statistics Administration
U.S. CENSUS BUREAU
The staff of the Manufacturing and Con-
struction Division prepared this report.
Judy M. Dodds, Assistant Chief for Cen-
sus and Related Programs, was respon-
sible for the overall planning, manage-
ment, and coordination. Kenneth
Hansen, Chief, Manufactured Durables
Branch, assisted by Mike Brown, Renee
Coley, Raphael Corrado, and Milbren
Thomas, Section Chiefs, Michael Zampo-
gna, Former Chief, Manufactured Nondu-
rables Branch, assisted by Allen Fore-
man, Robert Miller, Robert Reinard,
and Nat Shelton, Section Chiefs, and Tom
Lee, Robert Rosati, and Tom Flood,
Special Assistants, performed the planning
and implementation. Stephanie Angel,
Brian Appert, Stanis Batton, Carol Bea-
sley, Chris Blackburn, Larry Blum-
berg, Vera Harris-Bourne, Brenda
Campbell, Suzanne Conard, Vance
Davis, Mary Ellickson, Matt Gaines,
Merry Glascoe, Kay Hanks, Karen
Harshbarger, Nancy Higgins, James
Hinckley, Walter Hunter, Jim Jamski,
Evelyn Jordan, Robert Lee, John Line-
han, Paul Marck, Keith McKenzie,
Philippe Morris, Joanna Nguyen, Betty
Pannell, Joyce Pomeroy, Venita Powell,
Cynthia Ramsey, Chris Savage,
Aronda Stovall, Sue Sundermann, Tha-
nos Theodoropoulos, Dora Thomas,
Ann Truffa, Ronanne Vinson, Keeley
Voor, Denneth Wallace, Tempie Whit-
tington, Lissene Witt, and Mike
Yamaner provided primary staff assis-
tance.
Brian Greenberg, Assistant Chief for
Research and Methodology Programs,
assisted by Stacey Cole, Chief, Manufac-
turing Programs Methodology Branch, and
Robert Struble, Section Chief, provided
the mathematical and statistical tech-
niques as well as the coverage operations.
Jeffrey Dalzell and Cathy Ritenour pro-
vided primary staff assistance.
Mendel D. Gayle, Chief, Forms, Publica-
tions, and Customer Services Branch,
assisted by Julius Smith Jr. and Baruti
Taylor, Section Chiefs, performed overall
coordination of the publication process.
Kim Credito, Patrick Duck, Chip
Murph, Wanda Sledd, and Veronica
White provided primary staff assistance.
The Economic Planning and Coordination
Division, Lawrence A. Blum, Assistant
Chief for Collection Activities and Shirin
A. Ahmed, Assistant Chief for Post-
Collection Processing, assisted by Dennis
Shoemaker, Chief, Post-Collection Census
Processing Branch, Brandy Yarbrough,
Section Chief, Sheila Proudfoot, Richard
Williamson, Andrew W. Hait, and Jenni-
fer E. Lins, was responsible for develop-
ing the systems and procedures for data
collection, editing, review, correction and
dissemination
The staff of the National Processing Center,
Judith N. Petty, Chief, performed mailout
preparation and receipt operations, clerical
and analytical review activities, data key-
ing, and geocoding review.
The Geography Division staff developed
geographic coding procedures and associ-
ated computer programs.
The Economic Statistical Methods and Pro-
gramming Division, Charles P. Pautler
Jr., Chief, developed and coordinated the
computer processing systems. Martin S.
Harahush, Assistant Chief for Quinquen-
nial Programs, assisted by Barbara Lam-
bert and Christina Arledge were respon-
sible for design and implementation of the
computer systems. Gary T. Sheridan,
Chief, Manufacturing and Construction
Branch, Lori A. Guido and Roy A. Smith,
Section Chiefs, supervised the preparation
of the computer programs.
Computer Services Division, Debra Will-
iams, Chief, performed the computer pro-
cessing.
The staff of the Administrative and Cus-
tomer Services Division, Walter C. Odom,
Chief, performed planning, design, compo-
sition, editorial review, and printing plan-
ning and procurement for publications,
Internet products, and report forms.
Cynthia G. Brooks provided publication
coordination and editing.
ACKNOWLEDGMENTS
Copper Foundries (Except
Die-Casting)
1997 Economic Census
Manufacturing
Industry Series
1997
Issued September 1999
EC97M-3315G
U.S. Department of Commerce
William M. Daley,
Secretary
Robert L. Mallett,
Deputy Secretary
Economics
and Statistics
Administration
Robert J. Shapiro,
Under Secretary for
Economic Affairs
U.S. CENSUS BUREAU
Kenneth Prewitt,
Director
Paula J. Schneider,
Principal Associate Director
for Programs
Frederick T. Knickerbocker,
Associate Director
for Economic Programs
Thomas L. Mesenbourg,
Assistant Director
for Economic Programs
William G. Bostic Jr.,
Chief, Manufacturing
and Construction Division
ECONOMICS
AND STATISTICS
ADMINISTRATION
Economics
and Statistics
Administration
Robert J. Shapiro,
Under Secretary
for Economic Affairs
U.S. CENSUS BUREAU
Kenneth Prewitt,
Director
William G. Barron,
Deputy Director
CONTENTS
Introduction to the Economic Census
1
.............................
Manufacturing
5
.................................................
TABLES
1.
Industry Statistics on NAICS Basis With Distribution Among
1987 SIC~Based Industries: 1997
7
.........................
2.
Industry Statistics for Selected States: 1997
7
.................
3.
Detailed Statistics by Industry: 1997
8
........................
4.
Industry Statistics by Employment Size: 1997
9
................
5.
Industry Statistics by Industry and Primary Product Class
Specialization: 1997
9
.....................................
6a.
Products Statistics: 1997 and 1992
10
.........................
6b.
Product Class Shipments for Selected States: 1997 and 1992
~~
.
7.
Materials Consumed by Kind: 1997 and 1992
11
................
APPENDIXES
A.
Explanation of Terms
A–1
.....................................
B.
NAICS Codes, Titles, and Descriptions
B–1
......................
C.
Coverage and Methodology
C–1
................................
D.
Geographic Notes
~~
........................................
E.
Metropolitan Areas
~~
.......................................
F.
Footnotes for Products Statistics and Materials Consumed by
Kind
~~
...................................................
G.
Comparability of Product Classes and Product Codes: 1997 to
1992
G–1
...................................................
~~ Not applicable for this report.
MANUFACTURINGmINDUSTRY SERIES
NAICS 331525
iii
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Introduction to the Economic Census
PURPOSES AND USES OF THE ECONOMIC CENSUS
The economic census is the major source of facts about
the structure and functioning of the Nation’s economy. It
provides essential information for government, business,
industry, and the general public. Title 13 of the United
States Code (Sections 131, 191, and 224) directs the Cen-
sus Bureau to take the economic census every 5 years,
covering years ending in 2 and 7.
The economic census furnishes an important part of the
framework for such composite measures as the gross
domestic product estimates, input/output measures, pro-
duction and price indexes, and other statistical series that
measure short-term changes in economic conditions. Spe-
cific uses of economic census data include the following:
• Policymaking agencies of the Federal Government use
the data to monitor economic activity and assess the
effectiveness of policies.
• State and local governments use the data to assess
business activities and tax bases within their jurisdic-
tions and to develop programs to attract business.
• Trade associations study trends in their own and com-
peting industries, which allows them to keep their mem-
bers informed of market changes.
• Individual businesses use the data to locate potential
markets and to analyze their own production and sales
performance relative to industry or area averages.
ALL-NEW INDUSTRY CLASSIFICATIONS
Data from the 1997 Economic Census are published pri-
marily on the basis of the North American Industry Classi-
fication System (NAICS), unlike earlier censuses, which
were published according to the Standard Industrial Classi-
fication (SIC) system. NAICS is in the process of being
adopted in the United States, Canada, and Mexico. Most
economic census reports cover one of the following NAICS
sectors:
21
Mining
22
Utilities
23
Construction
31-33
Manufacturing
42
Wholesale Trade
44-45
Retail Trade
48-49
Transportation and Warehousing
51
Information
52
Finance and Insurance
53
Real Estate and Rental and Leasing
54
Professional, Scientific, and Technical
Services
55
Management of Companies and Enterprises
56
Administrative and Support and Waste
Management and Remediation Services
61
Educational Services
62
Health Care and Social Assistance
71
Arts, Entertainment, and Recreation
72
Accommodation and Foodservices
81
Other Services (except Public Administration)
(Not listed above are the Agriculture, Forestry, Fishing, and
Hunting sector (NAICS 11), partially covered by the census
of agriculture conducted by the U.S. Department of Agri-
culture, and the Public Administration sector (NAICS 92),
covered by the census of governments conducted by the
Census Bureau.)
The 20 NAICS sectors are subdivided into 96 subsectors
(three-digit codes), 313 industry groups (four-digit codes),
and, as implemented in the United States, 1170 industries
(five- and six-digit codes).
RELATIONSHIP TO SIC
While many of the individual NAICS industries corre-
spond directly to industries as defined under the SIC sys-
tem, most of the higher level groupings do not. Particular
care should be taken in comparing data for retail trade,
wholesale trade, and manufacturing, which are sector
titles used in both NAICS and SIC, but cover somewhat dif-
ferent groups of industries. The industry definitions dis-
cuss the relationships between NAICS and SIC industries.
Where changes are significant, it will not be possible to
construct time series that include data for points both
before and after 1997.
For 1997, data for auxiliary establishments (those func-
tioning primarily to manage, service, or support the activi-
ties of their company’s operating establishments, such as
a central administrative office or warehouse) will not be
included in the sector-specific reports. These data will be
published separately.
GEOGRAPHIC AREA CODING
Accurate and complete information on the physical
location of each establishment is required to tabulate the
census data for the states, metropolitan areas (MAs), coun-
ties, parishes, and corporate municipalities including cit-
ies, towns, villages, and boroughs. Respondents were
INTRODUCTION 1
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
required to report their physical location (street address,
municipality, county, and state) if it differed from their
mailing address. For establishments not surveyed by mail
(and those single-establishment companies that did not
provide acceptable information on physical location), loca-
tion information from Internal Revenue Service tax forms
is used as a basis for coding.
BASIS OF REPORTING
The economic census is conducted on an establishment
basis. A company operating at more than one location is
required to file a separate report for each store, factory,
shop, or other location. Each establishment is assigned a
separate industry classification based on its primary activ-
ity and not that of its parent company.
DOLLAR VALUES
All dollar values presented are expressed in current dol-
lars; i.e., 1997 data are expressed in 1997 dollars, and
1992 data, in 1992 dollars. Consequently, when making
comparisons with prior years, users of the data should
consider the changes in prices that have occurred.
All dollar values are shown in thousands of dollars.
AVAILABILITY OF ADDITIONAL DATA
Reports in Print and Electronic Media
All results of the 1997 Economic Census are available
on the Census Bureau Internet site (www.census.gov) and
on compact discs (CD-ROM) for sale by the Census Bureau.
Unlike previous censuses, only selected highlights are
published in printed reports. For more information, includ-
ing a description of electronic and printed reports being
issued, see the Internet site, or write to U.S. Census
Bureau, Washington, DC 20233-8300, or call Customer
Services at 301-457-4100.
Special Tabulations
Special tabulations of data collected in the 1997 Eco-
nomic Census may be obtained, depending on availability
of time and personnel, in electronic or tabular form. The
data will be summaries subject to the same rules prohibit-
ing disclosure of confidential information (including name,
address, kind of business, or other data for individual
business establishments or companies) that govern the
regular publications.
Special tabulations are prepared on a cost basis. A
request for a cost estimate, as well as exact specifications
on the type and format of the data to be provided, should
be directed to the Chief of the division named below, U.S.
Census Bureau, Washington, DC 20233-8300. To discuss a
special tabulation before submitting specifications, call
the appropriate division:
Manufacturing and Construction Division
301-457-4673
Service Sector Statistics Division
301-457-2668
HISTORICAL INFORMATION
The economic census has been taken as an integrated
program at 5-year intervals since 1967 and before that for
1954, 1958, and 1963. Prior to that time, individual com-
ponents of the economic census were taken separately at
varying intervals.
The economic census traces its beginnings to the 1810
Decennial Census, when questions on manufacturing were
included with those for population. Coverage of economic
activities was expanded for the 1840 Decennial Census
and subsequent censuses to include mining and some
commercial activities. The 1905 Manufactures Census was
the first time a census was taken apart from the regular
decennial population census. Censuses covering retail and
wholesale trade and construction industries were added in
1930, as were some covering service trades in 1933. Cen-
suses of construction, manufacturing, and the other busi-
ness service censuses were suspended during World War
II.
The 1954 Economic Census was the first census to be
fully integrated: providing comparable census data across
economic sectors, using consistent time periods, con-
cepts, definitions, classifications, and reporting units. It
was the first census to be taken by mail, using lists of
firms provided by the administrative records of other Fed-
eral agencies. Since 1963, administrative records also
have been used to provide basic statistics for very small
firms, reducing or eliminating the need to send them cen-
sus questionnaires.
The range of industries covered in the economic cen-
suses expanded between 1967 and 1992. The census of
construction industries began on a regular basis in 1967,
and the scope of service industries, introduced in 1933,
was broadened in 1967, 1977, and 1987. While a few
transportation industries were covered as early as 1963, it
was not until 1992 that the census broadened to include
all of transportation, communications, and utilities. Also
new for 1992 was coverage of financial, insurance, and
real estate industries. With these additions, the economic
census and the separate census of governments and cen-
sus of agriculture collectively covered roughly 98 percent
of all economic activity.
Printed statistical reports from the 1992 and earlier
censuses provide historical figures for the study of long-
term time series and are available in some large libraries.
All of the census reports printed since 1967 are still avail-
able for sale on microfiche from the Census Bureau.
CD-ROMs issued from the 1987 and 1992 Economic Cen-
suses contain databases including nearly all data pub-
lished in print, plus additional statistics, such as ZIP Code
statistics, published only on CD-ROM.
2
INTRODUCTION
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
SOURCES FOR MORE INFORMATION
More information about the scope, coverage, classifica-
tion system, data items, and publications for each of the
economic censuses and related surveys is published in the
Guide to the 1997 Economic Census and Related Statistics
at www.census.gov/econguide. More information on the
methodology, procedures, and history of the censuses will
be published in the History of the 1997 Economic Census
at www.census.gov/econ/www/history.html.
ABBREVIATIONS AND SYMBOLS
The following abbreviations and symbols are used with
the 1997 Economic Census data:
A
Standard error of 100 percent or more.
D
Withheld to avoid disclosing data of individual
companies; data are included in higher level
totals.
F
Exceeds 100 percent because data include
establishments with payroll exceeding rev-
enue.
N
Not available or not comparable.
Q
Revenue not collected at this level of detail for
multiestablishment firms.
S
Withheld because estimates did not meet
publication standards.
V
Represents less than 50 vehicles or .05
percent.
X
Not applicable.
Y
Disclosure withheld because of insufficient
coverage of merchandise lines.
Z
Less than half the unit shown.
a
0 to 19 employees.
b
20 to 99 employees.
c
100 to 249 employees.
e
250 to 499 employees.
f
500 to 999 employees.
g
1,000 to 2,499 employees.
h
2,500 to 4,999 employees.
i
5,000 to 9,999 employees.
j
10,000 to 24,999 employees.
k
25,000 to 49,999 employees.
l
50,000 to 99,999 employees.
m
100,000 employees or more.
p
10 to 19 percent estimated.
q
20 to 29 percent estimated.
r
Revised.
s
Sampling error exceeds 40 percent.
nec
Not elsewhere classified.
nsk
Not specified by kind.
–
Represents zero (page image/print only).
(CC)
Consolidated city.
(IC)
Independent city.
INTRODUCTION 3
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
This page is intentionally blank.
4
INTRODUCTION
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
Manufacturing
SCOPE
The 1997 Economic Census – Manufacturing covers all
manufacturing establishments with one or more paid
employees. Manufacturing is defined as the mechanical,
physical, or chemical transformation of materials or sub-
stances into new products. The assembly of components
into new products is also considered manufacturing,
except when it is appropriately classified as construction.
Establishments in the manufacturing sector are often
described as plants, factories, or mills and typically use
power-driven machines and materials-handling equipment.
Also included in the manufacturing sector are some estab-
lishments that make products by hand, like custom tailors
and the makers of custom draperies. While manufacturers
typically do not sell to the public, some establishments
like bakeries and candy stores that make products on the
premises may be included.
While logging and publishing are no longer in the scope
of manufacturing, data for these industries are included in
the manufacturing industry reports, but are not included
in the manufacturing state, summary, and other reports.
GENERAL
This report, from the 1997 Economic Census – Manufac-
turing, is one of a series of 480 industry reports and 51
geographic area reports, each of which provides statistics
for individual industries or states, respectively. Seven of
the industry reports are for industries no longer in the
manufacturing sector but are included with manufacturing
for the 1997 census year. Also included for this sector are
General, Product, and Materials Consumed Summary
reports, a special report on Concentration Ratios in Manu-
facturing, and data files on Location of Manufacturing
Plants.
Each industry report presents data for a six-digit North
American Industry Classification System (NAICS) industry.
A description of the particular NAICS industry may be
found in Appendix B. These reports include such statistics
as number of establishments, employment, payroll, value
added by manufacture, cost of materials consumed, value
of shipments, capital expenditures, etc. Explanations of
these and other terms may be found in Appendix A. The
industry reports also include data for states with 100
employees or more in the industry.
State reports, which include the District of Columbia,
present similar statistics at the ‘‘all manufacturing’’ level
for each state and its metropolitan areas (MAs) with 250
employees or more, and for counties, consolidated cities,
and places with 500 employees or more. The state reports
also include six-digit NAICS level data for industries with
100 employees or more in the state.
The General Summary report contains industry and geo-
graphic area statistics summarized in one report. It
includes higher levels of aggregation than the industry
and state reports, as well as revisions to the data made
after the release of the industry and state reports.
The Products and Materials Consumed reports summa-
rize the products and materials data published in the
industry reports. The Product Summary report also
includes data from the Current Industrial Reports (CIR) and
a special table with data for products that are primary to
more than one industry, which are not in the industry
reports.
The Concentration Ratios report publishes data on the
percentage of value of shipments accounted for by the 4-,
8-, 20-, and 50-largest companies for each manufacturing
industry. Also shown in this report are Hirschmann-
Herfindahl Indexes for each industry.
The Location of Manufacturing data files contain statis-
tics on the number of establishments for the three- and
six-digit NAICS industry by state, county, place, and ZIP
Code by employment-size of the establishment.
GEOGRAPHIC AREAS COVERED
Statistics at the six-digit NAICS industry level are shown
for states and the District of Columbia in both the state
and industry reports for cells with 100 employees or
more.
The state reports also include data at the ‘‘all manufac-
turing’’ level for a variety of geographies that meet the
employment criteria.
Data are available for the metropolitan areas (MAs) with
250 employees or more. The term MA is a general term
used to encompass all of the specifically defined metro-
politan areas. A consolidated metropolitan statistical area
(CMSA) is made up of two or more contiguous primary
metropolitan statistical areas (PMSAs) with a combined
population of at least 1 million. A PMSA is a subdivision of
a CMSA that demonstrates very strong internal economic
and social links separate from the ties to other portions of
the CMSA. A metropolitan statistical area (MSA) is an inte-
grated economic and social unit with a population of at
least 50,000. An MA is made up of one or more counties
meeting standards of metropolitan character. In New
England, cities and towns, rather than counties, are the
MANUFACTURING
5
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
component geographic units. Determination of the MAs
was made by the Office of Management and Budget (OMB)
as of June 30, 1997. The population estimates were from
the 1990 Census of Population or a subsequent special
census. When applicable, the make-up of an MA is
included in Appendix E. Changes to geographical bound-
aries are noted in Appendix D.
The state reports include data for counties with 500
employees or more. These are the primary divisions of
states, except in Louisiana where they are called parishes
and in Alaska where they are called boroughs and census
areas. Maryland, Missouri, Nevada, and Virginia have one
or more places that are independent of county organiza-
tions. These places are treated as counties and places. The
counties and places are defined as of January 1, 1997.
The state reports include data for places with 500
employees or more. Places are typically cities, towns, and
villages. They may be incorporated municipalities, semi-
independent municipalities, special economic urban areas
(SEUAs), or other place equivalents.
The state reports also include data for consolidated cit-
ies with 500 employees or more. Consolidated cities are
made up of separately incorporated municipalities.
COMPARABILITY OF THE 1992 AND 1997 CENSUSES
The adoption of the North American Industry Classifica-
tion System (NAICS) has had a major impact on the compa-
rability of data between the 1992 and 1997 censuses.
Approximately half of the industries in the manufacturing
sector of NAICS do not have comparable industries in the
Standard Industrial Classification (SIC) system that was
used in the past. If industries are not comparable between
the two censuses, historic data are not shown. When appli-
cable, Appendix G shows the product class and product
comparability between the two systems.
While most of the change affecting the manufacturing
sector was change within the sector, some industries left
manufacturing and others came into manufacturing.
Prominent among those leaving manufacturing are logging
and portions of publishing. Prominent among the indus-
tries coming into the manufacturing sector are bakeries,
candy stores where candy is made on the premises, cus-
tom tailors, makers of custom draperies, and tire retread-
ing. Data for the industries coming into manufacturing as
well as those leaving manufacturing are included in the
manufacturing industry report series for 1997. However,
the state and summary reports only include data for
industries in the NAICS definition of manufacturing.
Another change resulting from the conversion to NAICS
is that data for central administrative offices (CAOs) asso-
ciated with manufacturing are not included along side the
manufacturing data. This change affects data in the state
reports and the general summary.
DISCLOSURE
In accordance with Federal law governing census
reports (Title 13 of the United States Code), no data are
published that would disclose the operations of an indi-
vidual establishment or company. However, the number of
establishments classified in a specific industry or geogra-
phy is not considered a disclosure, and may be released
even when other information is withheld.
The disclosure analysis for the industry statistics files is
based on the total value of shipments. When the total
value of shipments cannot be shown without disclosing
information for individual companies, the complete line is
suppressed except for capital expenditures. However, the
suppressed data are included in higher-level totals. A sepa-
rate disclosure analysis is performed for capital expendi-
tures that can be suppressed even though value of ship-
ments data are published.
AVAILABILITY OF MORE FREQUENT ECONOMIC
DATA
The Census Bureau conducts the Annual Survey of
Manufactures (ASM) in each of the 4 years between the
economic censuses. The ASM is a probability-based
sample of approximately 58,000 establishments and col-
lects many of the same industry statistics (including
employment, payroll, value of shipments, etc.) as the eco-
nomic census. However, there are selected statistics not
included in the ASM. Among these are the number of com-
panies and establishments, detailed product and materials
data, and substate geographic data.
In addition to the ASM, the Census Bureau conducts a
Current Industrial Reports (CIR) program. The CIR pub-
lishes detailed product statistics for selected manufactur-
ing industries at the U.S. level annually and, in some
cases, monthly and/or quarterly. For the 1997 Economic
Census – Manufacturing, the annual CIR data are included
in the Product Summary report.
The Census Bureau also conducts the monthly Manufac-
turers’ Shipments, Inventories, and Orders (M3) program,
which publishes detailed statistics for manufacturing
industries at the U.S. level.
6 MANUFACTURING
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
Table 1.
Industry Statistics on NAICS Basis With Distribution Among 1987 SIC~Based
Industries: 1997
[NAICS codes appear in bold type. For meaning of abbreviations and symbols, see introductory text. For explanation of terms, see appendixes]
NAICS
or SIC
code
Industry
All employees
Production workers
Com~
panies1
All
estab~
lish~
ments2
Number
Payroll
($1,000)
Number
Hours
(1,000)
Wages
($1,000)
Value added by
manufacture
($1,000)
Cost of
materials
($1,000)
Value of
shipments
($1,000)
Total capital
expendi~
tures
($1,000)
331525 Copper foundries (except die~
casting)
302
.....................
312
8 909
260 340
7 423
15 073
192 023
522 435
341 658
854 704
25 624
336600
Copper foundries
N
.............
312
8 909
260 340
7 423
15 073
192 023
522 435
341 658
854 704
25 624
1For the census, a company is defined as a business organization consisting of one establishment or more under common ownership or control.
2Includes establishments with payroll at any time during the year.
Table 2.
Industry Statistics for Selected States: 1997
[States that are disclosures or with less than 100 employees are not shown. For explanation of terms, see appendixes. For meaning of abbreviations and symbols, see introductory text]
Industry and geographic area
All
establishments
All employees
Production workers
E1
Total
With 20
em~
ploy~
ees or
more
Number
Payroll
($1,000)
Number
Hours
(1,000)
Wages
($1,000)
Value added by
manufacture
($1,000)
Cost of
materials
($1,000)
Value of
shipments
($1,000)
Total capital
expendi~
tures
($1,000)
331525, COPPER FOUNDRIES
(EXCEPT DIE~CASTING)
United States
1
..............
312
127
8 909
260 340
7 423
15 073
192 023
522 435
341 658
854 704
25 624
Arizona
–
............................
8
3
166
4 263
135
275
2 990
6 446
4 631
10 951
250
California
–
..........................
31
9
566
15 600
470
945
10 412
32 098
20 299
52 040
909
Illinois
3
.............................
26
12
785
25 938
690
1 444
20 226
46 799
32 647
79 291
3 421
Indiana
–
............................
10
8
508
15 793
443
777
12 491
26 795
21 164
47 885
795
New York
2
..........................
18
7
283
6 118
228
461
4 201
10 630
5 221
15 970
256
Oregon
3
............................
11
5
228
5 784
202
382
4 581
13 533
4 537
16 702
201
Pennsylvania
–
.......................
25
13
875
27 151
698
1 445
18 903
62 517
29 396
92 802
3 367
Texas
1
.............................
18
5
247
5 755
213
420
4 593
10 910
11 007
21 146
86
Wisconsin
1
..........................
11
8
1 162
36 776
973
2 073
27 942
83 880
48 795
132 236
7 641
* Hawaii has no incorporated places in the sense of functioning governmental units; however, in agreement with Hawaiian law, the Bureau of the Census reports data for census designated
places (CDPs) which have been designated as place equivalents. Those CDPs, only for the state of Hawaii, with 2,500 or more population are recognized.
1Some payroll and sales data for small single~establishment companies with up to 20 employees (cutoff varied by industry) were obtained from administrative records of other government
agencies rather than from census report forms. These data were then used in conjunction with industry averages to estimate statistics for these small establishments. This technique was also used for a
small number of other establishments whose reports were not received at the time data were tabulated. The following symbols are shown where estimated data based on administrative~record data
account for 10 percent or more of the figures shown: 1–10 to 19 percent; 2–20 to 29 percent; 3–30 to 39 percent; 4–40 to 49 percent; 5–50 to 59 percent; 6–60 to 69 percent; 7–70 to 79 percent; 8–80 to
89 percent; 9–90 percent or more.
MANUFACTURINGmINDUSTRY SERIES
NAICS 331525 7
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Table 3. Detailed Statistics by Industry: 1997
[For meaning of abbreviations and symbols, see introductory text. For explanation of terms, see appendixes]
Item
Value
331525, COPPER FOUNDRIES (EXCEPT DIE~
CASTING)
Companies1
number..
................................................
302
All establishments
number..
...........................................
312
Establishments with 1 to 19 employees
number..
.......................
185
Establishments with 20 to 99 employees
number..
.....................
105
Establishments with 100 employees or more
number..
..................
22
All employees
number..
...............................................
8 909
Total compensation2
$1,000..
..........................................
340 801
Annual payroll
$1,000..
..............................................
260 340
Total fringe benefits
$1,000..
.........................................
80 461
Production workers, average for year
number..
..........................
7 423
Production workers on March 12
number..
............................
7 226
Production workers on May 12
number..
..............................
7 489
Production workers on August 12
number..
............................
7 512
Production workers on November 12
number..
.........................
7 465
Production~worker hours
1,000..
.......................................
15 073
Production~worker wages
$1,000..
......................................
192 023
Total cost of materials
$1,000..
.........................................
341 658
Cost of materials, parts, containers, etc., consumed
$1,000..
.............
274 931
Cost of resales
$1,000..
.............................................
17 349
Cost of fuels
$1,000..
...............................................
7 413
Cost of purchased electricity
$1,000..
.................................
21 787
Cost of contract work
$1,000..
.......................................
20 178
Quantity of electricity purchased for heat and power
1,000 kWh..
...........
363 833
Quantity of electricity generated less sold for heat and power
1,000 kWh..
...
–
Total value of shipments
$1,000..
......................................
854 704
Primary products value of shipments
$1,000..
..........................
741 848
Secondary products value of shipments
$1,000..
.......................
75 923
Total miscellaneous receipts
$1,000..
.................................
36 933
Value of resales
$1,000..
..........................................
27 241
Contract receipts
$1,000..
.........................................
4 574
Other miscellaneous receipts
$1,000..
..............................
5 118
Primary products specialization ratio
percent..
...........................
90
Value of primary products shipments made in all industries
$1,000..
........
874 230
Value of primary products shipments made in this industry
$1,000..
.......
741 848
Value of primary products shipments made in other
industries
$1,000..
.................................................
132 382
Coverage ratio
percent..
..............................................
84
Item
Value
331525, COPPER FOUNDRIES (EXCEPT DIE~
CASTING)mCon.
Value added
$1,000..
.................................................
522 435
Total inventories, beginning of year
$1,000..
.............................
78 873
Finished goods inventories, beginning of year
$1,000..
..................
22 166
Work~in~process inventories, beginning of year
$1,000..
.................
26 121
Materials and supplies inventories, beginning of year
$1,000..
............
30 586
Total inventories, end of year
$1,000..
..................................
88 204
Finished goods inventories, end of year
$1,000..
.......................
27 751
Work~in~process inventories, end of year
$1,000..
......................
29 925
Materials and supplies inventories, end of year
$1,000..
.................
30 528
Gross book value of total assets at beginning of year
$1,000..
..............
359 353
Total capital expenditures (new and used)
$1,000..
.....................
25 624
Capital expenditures for buildings and other structures
(new and used)
$1,000..
.........................................
4 100
Capital expenditures for machinery and equipment (new
and used)
$1,000..
..............................................
21 524
Total retirements2
$1,000..
..........................................
8 384
Gross book value of total assets at end of year
$1,000..
...................
376 593
Total depreciation during year2
$1,000..
.................................
24 706
Total rental payments2
$1,000..
........................................
9 149
Buildings and other structures rental payments2
$1,000..
................
3 924
Machinery and equipment rental payments2
$1,000..
....................
5 225
Cost of purchased services for the repair of buildings and other
structures3
$1,000..
..................................................
823
Response coverage ratio4
percent..
..................................
95
Cost of purchased services for the repair of machinery and
equipment3
$1,000..
.................................................
5 634
Response coverage ratio4
percent..
..................................
95
Cost of purchased communications services3
$1,000..
....................
1 186
Response coverage ratio4
percent..
..................................
95
Cost of purchased legal services3
$1,000..
..............................
481
Response coverage ratio4
percent..
..................................
95
Cost of purchased accounting and bookkeeping services3
$1,000..
.........
870
Response coverage ratio4
percent..
..................................
95
Cost of purchased advertising services3
$1,000..
.........................
600
Response coverage ratio4
percent..
..................................
95
Cost of purchased software and other data processing
services3
$1,000..
...................................................
341
Response coverage ratio4
percent..
..................................
95
Cost of purchased refuse removal (including hazardous waste)
services3
$1,000..
...................................................
1 101
Response coverage ratio4
percent..
..................................
95
1For the census, a company is defined as a business organization consisting of one establishment or more under common ownership or control.
2These items are collected in the ASM and estimated for the remaining establishments; therefore, the levels of estimation are higher than for other items in the table.
3Based on ASM sample data.
4A response coverage ratio is derived for this item by calculating the ratio of the weighted employment (establishment data multiplied by sample weight) for those ASM establishments that
reported to the weighted total employment for all ASM establishments classified in this industry.
Note: The amounts shown for purchased services reflect only those services that establishments purchase from other companies.
8
NAICS 331525
MANUFACTURINGmINDUSTRY SERIES
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Table 4.
Industry Statistics by Employment Size: 1997
[For meaning of abbreviations and symbols, see introductory text. For explanation of terms, see appendixes]
Employment size class
All
establishments
All employees
Production workers
E1
Total
With 20
em~
ploy~
ees or
more
Number
Payroll
($1,000)
Number
Hours
(1,000)
Wages
($1,000)
Value added by
manufacture
($1,000)
Cost of
materials
($1,000)
Value of
shipments
($1,000)
Total capital
expendi~
tures
($1,000)
331525, COPPER FOUNDRIES
(EXCEPT DIE~CASTING)
All establishments
1
.........
312
127
8 909
260 340
7 423
15 073
192 023
522 435
341 658
854 704
25 624
Establishments with 1 to 4
employees
8
........................
66
–
141
2 991
127
219
2 391
4 594
2 302
6 912
119
Establishments with 5 to 9
employees
5
........................
66
–
461
11 090
381
692
8 127
20 245
10 355
31 215
436
Establishments with 10 to 19
employees
1
........................
53
–
749
19 583
605
1 237
14 179
35 787
22 000
57 838
1 546
Establishments with 20 to 49
employees
1
........................
76
76
2 418
68 657
1 996
3 996
48 196
141 603
93 893
231 660
4 163
Establishments with 50 to 99
employees
2
........................
29
29
1 881
58 204
1 594
3 282
43 393
114 159
67 024
176 898
5 399
Establishments with 100 to 249
employees
–
........................
21
21
D
D
D
D
D
D
D
D
D
Establishments with 250 to 499
employees
–
........................
1
1
D
D
D
D
D
D
D
D
D
Establishments with 500 to 999
employees
–
........................
–
–
–
–
–
–
–
–
–
–
–
Establishments with 1,000 to 2,499
employees
–
........................
–
–
–
–
–
–
–
–
–
–
–
Establishments with 2,500 employees
or more
–
...........................
–
–
–
–
–
–
–
–
–
–
–
Administrative records2
9
..............
104
–
507
9 854
451
753
7 894
14 897
7 936
22 866
412
1Some payroll and sales data for small single~establishment companies with up to 20 employees (cutoff varied by industry) were obtained from administrative records of other government
agencies rather than from census report forms. These data were then used in conjunction with industry averages to estimate statistics for these small establishments. This technique was also used for a
small number of other establishments whose reports were not received at the time data were tabulated. The following symbols are shown where estimated data based on administrative~record data
account for 10 percent or more of the figures shown: 1–10 to 19 percent; 2–20 to 29 percent; 3–30 to 39 percent; 4–40 to 49 percent; 5–50 to 59 percent; 6–60 to 69 percent; 7–70 to 79 percent; 8–80 to
89 percent; 9–90 percent or more.
2Some payroll and sales data for small single~establishment companies with up to 20 employees (cutoff varied by industry) were obtained from administrative records of other government
agencies rather than from census report forms. These data were then used in conjunction with industry averages to estimate statistics for these small establishments. Data are also included in respective
size classes shown.
Table 5.
Industry Statistics by Industry and Primary Product Class Specialization: 1997
[For meaning of abbreviations and symbols, see introductory text. For explanation of terms, see appendixes]
NAICS
industry or
product
class code
Industry or primary product class
All employees
Production workers
All
estab~
lish~
ments
Number
Payroll
($1,000)
Number
Hours
(1,000)
Wages
($1,000)
Value added
by
manufacture
($1,000)
Cost of
materials
($1,000)
Value of
shipments
($1,000)
Total capital
expendi~
tures
($1,000)
331525
Copper foundries (except
die~casting)
312
.............
8 909
260 340
7 423
15 073
192 023
522 435
341 658
854 704
25 624
MANUFACTURINGmINDUSTRY SERIES
NAICS 331525 9
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Table 6a. Products Statistics: 1997 and 1992
[Includes quantity and value of products of this industry produced by (1) establishments classified in this industry (primary) and (2) establishments classified in other industries (secondary). Transfers of
products of this industry from one establishment of a company to another establishment of the same company (interplant transfers) are also included. For meaning of abbreviations and symbols, see
introductory text. For explanation of terms, see appendixes]
NAICS
product
code
Product
1997
1992
Product shipments
Product shipments
Number of
companies
with
shipments
of
$100,000
or more
Quantity of
production
for all
purposes
Quantity
Value
($1,000)
Number of
companies
with
shipments
of
$100,000
or more
Quantity of
production
for all
purposes
Quantity
Value
($1,000)
331525
Copper foundries ..............
N
...................
X
X
874 230
N
X
X
750 446
3315250
Copper and copper~base alloy castings,
excluding die~castings ..................
N
...................
X
X
874 230
N
X
X
750 446
33152501
Copper~base alloy sand castings (except
bearings and bushings) ...............
N
...................
X
X
164 612
N
X
X
N
3315250101
Copper~base alloy sand castings
(except bearings and bushings) ......
58
...................
X
X
164 612
67
X
X
122 660
33152502
Leaded red and semi~red brass sand
castings (except bearings and
bushings) ...........................
N
...................
X
X
194 330
N
X
X
N
3315250206
Leaded red and semi~red brass sand
castings (except bearings and
bushings) .........................
87
...................
X
X
88 245
105
X
X
100 047
3315250221
Engineered copper alloy sand castings,
including manganese bronzes, silicon
bronzes and brasses, aluminum
bronzes, and copper nickels (except
bearings and bushings) .............
89
...................
X
X
106 085
101
X
X
92 510
33152504
Tin bronze, copper and high~copper alloy,
and other copper alloy sand castings ...
N
...................
X
X
218 846
N
X
X
N
3315250411
Tin bronze sand castings, including
leaded and high~leaded (except
bearings and bushings) .............
55
...................
X
X
55 910
51
X
X
41 980
3315250416
Copper and high~copper alloy sand
castings (except bearings and
bushings) .........................
28
...................
X
X
85 244
34
X
X
52 268
3315250426
Other copper alloy sand castings,
including yellow and leaded yellow
brasses, nickel tin bronzes, nickel
silvers, lead bronzes, and special
alloys (except bearings and
bushings) .........................
33
...................
X
X
77 692
46
X
X
52 270
33152505
Other copper and copper~base alloy
castings, excluding die~castings........
N
...................
X
X
172 004
N
X
X
N
3315250531
Copper and copper~base alloy
permanent and semipermanent mold
castings (except bearings and
bushings) .........................
5
...................
X
X
25 962
6
X
X
29 867
3315250536
Copper and copper~base alloy
centrifugal castings (except bearings
and bushings) .....................
9
...................
X
X
58 088
10
X
X
33 636
3315250541
Copper and copper~base alloy
investment castings (except bearings
and bushings) .....................
35
...................
X
X
32 557
40
X
X
23 279
3315250546
Other copper and copper~base alloy
castings, excluding die~castings
(except bearings and bushings) ......
15
...................
X
X
55 397
11
X
X
27 830
33152506
Copper~base alloy bearings and
bushings, nonmachined...............
N
...................
X
X
32 840
N
X
X
N
3315250651
Copper~base alloy bearings and
bushings, nonmachined.............
5
...................
X
X
32 840
9
X
X
34 115
3315250Y
Copper foundries, nsk, total ............
N
...................
X
X
91 598
N
X
X
N
3315250YWW
Copper foundries, nsk, for
nonadministrative~record
establishments.....................
N
...................
X
X
69 170
N
X
X
129 464
3315250YWY
Copper foundries, nsk, for
administrative~record establishments .
N
...................
X
X
22 428
N
X
X
10 520
# Additional information is available for this item; see Appendix F.
@ Additional data are available for these codes at the aggregate U.S. level in the Current Industrial Report (CIR) series; see Appendix F for the CIR survey number and title.
$ This product is primary to more than one industry; see Appendix F for a listing of the related product codes.
Note: For some establishments, data have been estimated from central unit values which are based on quantity~value relationships of reported data. The following symbols are used when
percentage of each quantity figure estimated in this manner equals or exceeds 10 percent of published figure: p 10 to 19 percent estimated; q 20 to 29 percent estimated. If 30 percent or more is
estimated, figure is replaced by S.
Table 6b. Product Class Shipments for Selected States: 1997 and 1992
[Not applicable for this report]
10
NAICS 331525
MANUFACTURINGmINDUSTRY SERIES
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Table 7. Materials Consumed by Kind: 1997 and 1992
[Includes quantity and cost of materials consumed or put into production by establishments classified only in this industry. For meaning of abbreviations and symbols, see introductory text. For explanation
of terms, see appendixes]
NAICS
material
code
Material consumed
1997
1992
Quantity
Delivered cost
($1,000)
Quantity
Delivered cost
($1,000)
331525
COPPER FOUNDRIES (EXCEPT DIE~CASTING)
33142111
Copper and copper~base alloy shapes and forms (except castings, forgings,
and fabricated metal products) .......................................
X
...................
109 539
X
92 233
33100039
Aluminum and aluminum~base alloy shapes and forms (except castings,
forgings, and fabricated metal products) ...............................
X
...................
10 818
X
8 809
33149105
Zinc and zinc~base alloy shapes and forms (except castings, forgings, and
fabricated metal products) ...........................................
X
...................
779
X
224
33141935
Magnesium and magnesium~base alloy shapes and forms (except castings,
forgings, and fabricated metal products) ...............................
X
...................
883
X
D
331000AG All other nonferrous shapes and forms (except castings, forgings, and
fabricated metal products) ...........................................
X
...................
561
X
3 520
00190024
Copper and copper~base alloy scrap (except home scrap).................
X
...................
19 257
X
28 537
00190040
Aluminum and aluminum~base alloy scrap (except home scrap)............
X
...................
176
X
124
00190080
Other nonferrous metal scrap (except home scrap).......................
X
...................
209
X
701
33299700
Industrial patterns....................................................
X
...................
2 882
X
1 979
33350003
Industrial dies, molds, jigs, and fixtures .................................
X
...................
757
X
4 383
001900A4
All other industrial and commercial machinery and computer equipment ....
X
...................
1 772
X
559
21232005
Sand ...............................................................
X
...................
4 628
X
2 890
32791001
Grinding wheels and other abrasive products, except industrial diamonds ...
X
...................
2 796
X
1 935
00970099
All other materials and components, parts, containers, and supplies ........
X
...................
57 698
X
N
00971000
Materials, ingredients, containers, and supplies, n.s.k. ....................
X
...................
62 176
X
81 698
# Additional information is available for this item; see Appendix F.
Note: For some establishments, data have been estimated from central unit values which are based on quantity~value relationships of reported data. The following symbols are used when
percentage of each quantity figure estimated in this manner equals or exceeds 10 percent of published figure: p 10 to 19 percent estimated; q 20 to 29 percent estimated. If 30 percent or more is
estimated, figure is replaced by S.
MANUFACTURINGmINDUSTRY SERIES
NAICS 331525 11
U.S. Census Bureau, 1997 Economic Census Sep. 17, 1999
Appendix A.
Explanation of Terms
BEGINNING- AND END-OF-YEAR INVENTORIES
Respondents were asked to report their beginning-of-
year and end-of-year inventories at cost or market. Effec-
tive with the 1982 Economic Census, this change to a uni-
form instruction for reporting inventories was introduced
for all sector reports. Prior to 1982, respondents were per-
mitted to value inventories using any generally accepted
accounting method (FIFO, LIFO, market, to name a few).
Beginning in 1982, LIFO users were asked to first report
inventory values prior to the LIFO adjustment and then to
report the LIFO reserve and the LIFO value after adjust-
ment for the reserve.
Inventory Data by Stage of Fabrication
Total inventories and three detailed components (1) fin-
ished goods, (2) work-in-process, and (3) materials, sup-
plies, fuels, etc., were collected.
When using inventory data by stage of fabrication for
‘‘all industries’’ and at the three-digit subsector level, it
should be noted that an item treated as a finished product
by an establishment in one industry may be reported as a
raw material by an establishment in a different industry.
For example, the finished-product inventories of a steel
mill would be reported as raw materials by a stamping
plant. Such differences are present in the inventory figures
by stage of fabrication shown for all publication levels.
COST OF MATERIALS
This term refers to direct charges actually paid or pay-
able for items consumed or put into production during the
year, including freight charges and other direct charges
incurred by the establishment in acquiring these materials.
It includes the cost of materials or fuel consumed,
whether purchased by the individual establishment from
other companies, transferred to it from other establish-
ments of the same company, or withdrawn from inventory
during the year.
Included in this item are:
1. Cost of parts, components, containers, etc.—Includes
all raw materials, semifinished goods, parts, contain-
ers, scrap, and supplies put into production or used as
operating supplies and for repair and maintenance
during the year.
2. Cost of products bought and sold in the same condi-
tion.
3. Cost of fuels consumed for heat and power—Includes
the cost of materials or fuel consumed, whether pur-
chased by the individual establishment from other
companies, transferred to it from other establishments
of the same company, or withdrawn from inventory
during the year.
4. Cost of purchased electricity—The cost of purchased
electric energy represents the amount actually used
during the year for heat and power. In addition, infor-
mation was collected on the quantity of electric
energy generated by the establishment and the quan-
tity of electric energy sold or transferred to other
plants of the same company.
5. Cost of contract work—This term applies to work
done by others on materials furnished by the manu-
facturing establishment. The actual cost of the mate-
rial is to be reported on the cost of materials, parts,
and containers line of this item. The term ‘‘Contract
Work’’ refers to the fee a company pays to another
company to perform a service.
Specific Materials Consumed
In addition to the total cost of materials, which every
establishment was required to report, information also
was collected for most manufacturing industries on the
consumption of major materials used in manufacturing.
The inquiries were restricted to those materials which
were important parts of the cost of production in a par-
ticular industry and for which cost information was avail-
able from manufacturers’ records. If less than $25,000 of
a listed material was consumed by an establishment, the
cost data could be reported in the ‘‘Cost of all other mate-
rials...,’’ Census material code 00970099. Also, the cost of
materials for small establishments for which administra-
tive records or short forms were used was imputed into
the ‘‘Materials not specified by kind,’’ Census materials
code 00971000.
Duplication in Cost of Materials and Value of
Shipment
The aggregate of the cost of materials and value of
shipments figures for industry groups and for all manufac-
turing industries includes large amounts of duplication
since the products of some industries are used as materi-
als by others. This duplication results, in part, from the
addition of related industries representing successive
APPENDIX A A–1
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
stages in the production of a finished manufactured prod-
uct. Examples are the addition of flour mills to bakeries in
the food group and the addition of pulp mills to paper
mills in the paper and allied products group of industries.
Estimates of the overall extent of this duplication indicate
that the value of manufactured products exclusive of such
duplication (the value of finished manufactures) tends to
approximate two-thirds of the total value of products
reported in the survey.
Duplication of products within individual industries is
significant within a number of industry groups, e.g.,
machinery and transportation industries. These industries
frequently include complete machinery and their parts. In
this case, the parts made for original equipment are mate-
rials consumed for assembly plants in the same industry.
Even when no significant amount of duplication is
involved, value of shipments figures are deficient as mea-
sures of the relative economic importance of individual
manufacturing industries or geographic areas because of
the wide variation in ratio of materials, labor, and other
processing costs of value of shipments, both among
industries and within the same industry.
Before 1962, cost of materials and value of shipments
were not published for some industries which included
considerable duplication. Since then, these data have been
published for all industries at the U.S. level and beginning
in 1964, for all geographic levels.
COST OF PURCHASED SERVICES
Annual Survey of Manufactures (ASM) establishments
were requested to provide information on the cost of pur-
chased services for the repair of buildings and other struc-
tures, the repair of machinery, communication services,
legal services, accounting and bookkeeping services,
advertising, software and other data processing services,
and refuse removal. Each of these items reflects the costs
paid directly by the establishment and excludes salaries
paid to employees of the establishment for these services.
Included in the cost of purchased services for the repair
of buildings and machinery are payments made for all
maintenance and repair work on buildings and equipment.
Payments made to other establishments of the same com-
pany and for repair and maintenance of any leased prop-
erty also are included. Extensive repairs or reconstruction
that was capitalized is considered capital expenditures
and is, therefore, excluded from this item. Repair and
maintenance costs provided by an owner as part of a
rental contract or incurred directly by an establishment in
using its own work force also are excluded.
Included in the cost of purchased advertising services
are payments for printing, media coverage, and other
advertising services and materials.
Included in the cost of purchased software and other
data processing services are all purchases by the estab-
lishment from other companies. Excluded are services pro-
vided by other establishments of the same company (such
as by a separate data processing unit).
Included in the cost of purchased refuse removal ser-
vices are all costs of refuse removal services paid by the
establishment, including costs for hazardous waste
removal or treatment. Excluded are all costs included in
rental payments or as capital expenditures.
Response Coverage Ratio
A response coverage ratio is a measure of the extent to
which respondents report for an item. The estimate is
made by calculating the ratio value of the weighted total
employment data for all the ASM establishments that
report the item to the weighted total employment data for
all ASM establishments classified in an industry (reporters
and non-reporters).
DEPRECIATION CHARGES FOR FIXED ASSETS
This item includes depreciation and amortization
charged during the year against assets. Depreciation
charged against fixed assets acquired since the beginning
of the year and against assets sold or retired during the
year are components of this category. Respondents were
requested to make certain that they did not report accu-
mulated depreciation.
EMPLOYEES
This item includes all full-time and part-time employees
on the payrolls of operating manufacturing establishments
during any part of the pay period which included the 12th
of the months specified on the report form. Included are
all persons on paid sick leave, paid holidays, and paid
vacations during these pay periods. Officers of corpora-
tions are included as employees; proprietors and partners
of unincorporated firms are excluded. The ‘‘all employees’’
number is the average number of production workers plus
the number of other employees in mid-March. The number
of production workers is the average for the payroll peri-
ods including the 12th of March, May, August, and Novem-
ber.
Production Workers
This item includes workers (up through the line-
supervisor level) engaged in fabricating, processing,
assembling, inspecting, receiving, storing, handling, pack-
ing, warehousing, shipping (but not delivering), mainte-
nance, repair, janitorial and guard services, product devel-
opment, auxiliary production for plant’s own use (e.g.,
power plant), recordkeeping, and other services closely
associated with these production operations at the estab-
lishment covered by the report. Employees above the
working-supervisor level are excluded from this item.
All Other Employees
This item covers nonproduction employees of the
manufacturing establishment including those engaged in
factory supervision above the line-supervisor level. It
A–2 APPENDIX A
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
includes sales (including driver-salespersons), sales deliv-
ery (highway truck drivers and their helpers), advertising,
credit, collection, installation and servicing of own prod-
ucts, clerical and routine office functions, executive, pur-
chasing, financing, legal, personnel (including cafeteria,
medical, etc.), professional, and technical employees. Also
included are employees on the payroll of the manufactur-
ing establishment engaged in the construction of major
additions or alterations utilized as a separate work force.
FRINGE BENEFITS
Fringe benefits are divided into legally required expen-
ditures and payments for voluntary programs. The legally
required portion consists primarily of Federal old age and
survivors’ insurance, unemployment compensation, and
workers’ compensation. Payments for voluntary programs
include all programs not specifically required by legisla-
tion whether they were employer initiated or the result of
collective bargaining. They include the employer portion
of such plans as insurance premiums, premiums for
supplemental accident and sickness insurance, pension
plans, supplemental unemployment compensation, wel-
fare plans, stock purchase plans on which the employer
payment is not subject to withholding tax, and deferred
profit-sharing plans. They exclude such items as company-
operated cafeterias, in-plant medical services, free parking
lots, discounts on employee purchases, and uniforms and
work clothing for employees.
GROSS BOOK VALUE OF DEPRECIABLE ASSETS AT
BEGINNING OF YEAR (BOY) AND END OF YEAR (EOY)
Total value of depreciable assets is collected on all cen-
sus forms. It shows the value of depreciable assets for the
beginning of year and end of year. The data encompass all
fixed depreciable assets on the books of establishments.
The values shown (book value) represent the actual cost
of assets at the time they were acquired, including all
costs incurred in making the assets usable (such as trans-
portation and installation). Included are all buildings,
structures, machinery, and equipment (production, office,
and transportation equipment) for which depreciation
reserves are maintained. Excluded are nondepreciable
capital assets including inventories and intangible assets,
such as timber and mineral rights.
The definition of fixed depreciable assets is consistent
with the definition of capital expenditures. For example,
expenditures include actual capital outlays during the year
rather than the final value of equipment put in place and
buildings completed during the year. Accordingly, the
value of assets at the end of the year includes the value of
construction in progress.
In addition, respondents were requested to make cer-
tain that assets at the beginning of the year plus capital
expenditures, less retirements, equaled assets at the end
of the year.
NUMBER OF ESTABLISHMENTS AND COMPANIES
A separate report was required for each manufacturing
establishment (plant) with one employee or more. An
establishment is defined as a single physical location
where manufacturing is performed. A company, on the
other hand, is defined as a business organization consist-
ing of one establishment or more under common owner-
ship or control.
If the company operated at different physical locations,
even if the individual locations were producing the same
line of goods, a separate report was requested for each
location. If the company operated in two or more distinct
lines of manufacturing at the same location, a separate
report was requested for each activity.
An establishment not in operation for any portion of
the year was requested to return the report form with the
proper notation in the ‘‘Operational Status’’ section of the
form. In addition, the establishment was requested to
report data on any employees, capital expenditures, inven-
tories, or shipments from inventories during the year.
PAYROLL
This item includes the gross earnings of all employees
on the payrolls of operating manufacturing establishments
paid in the calendar year. Respondents were told they
could follow the definition of payrolls used for calculating
the Federal withholding tax. It includes all forms of com-
pensation, such as salaries, wages, commissions, dis-
missal pay, bonuses, vacation and sick leave pay, and
compensation in kind, prior to such deductions as employ-
ees’ social security contributions, withholding taxes,
group insurance, union dues, and savings bonds. The total
includes salaries of officers of corporations; it excludes
payments to proprietors or partners of unincorporated
concerns. Also excluded are payments to members of
Armed Forces and pensioners carried on the active pay-
rolls of manufacturing establishments.
The census definition of payrolls is identical to that rec-
ommended to all Federal statistical agencies by the Office
of Management and Budget. It should be noted that this
definition does not include employers’ social security con-
tributions or other nonpayroll labor costs, such as employ-
ees’ pension plans, group insurance premiums, and work-
ers’ compensation.
The ASM provides estimates of employers’ total supple-
mental labor costs (those required by Federal and state
laws and those incurred voluntarily or as part of collective
bargaining agreements).
PRODUCT CODES AND CLASSES OF PRODUCTS
NAICS United States industries are identified by a six-
digit code, in contrast to the four-digit SIC code. The
longer code accommodates the large number of sectors
and allows more flexibility in designing subsectors. Each
APPENDIX A A–3
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
product or service is assigned a ten-digit code. The prod-
uct coding structure represents an extension by the Cen-
sus Bureau of the six-digit industry classifications of the
manufacturing and mining sectors. The classification sys-
tem operates so that the industrial coverage is progres-
sively narrower with the successive addition of digits. This
is illustrated as follows:
NAICS level
NAICS code
Description
Industry . . . . . . . . . .
33461 Manufacturing and reproduction
of magnetic and optical media
U.S. industry. . . . . .
334612 Reproduction of software
Product class . . . . .
3346120 Prerecorded compact disc (except
software), tape, and record repro-
ducing
BLS link code . . . . .
3346120X
Product code . . . . .
3346120XXX
As in previous censuses, data were collected for most
industries on the quantity and value of individual products
shipped. In the 1997 census program, information was
collected on the output of almost 10,000 individual prod-
uct items.
In the new system, there are about 1,500 product
classes (seven-digit codes), about 6,000 census products
(ten-digit codes), and an additional 3,700 CIR products
(ten-digit codes). The ten-digit products are considered the
primary products of the industry with the same first six
digits.
The list of products for which separate information was
collected was prepared after consultation with industry
and government representatives. Comparability with pre-
vious figures was given considerable weight in the selec-
tion of product categories so that comparable 1992 infor-
mation is presented for most products.
Typically, both quantity and value of shipments infor-
mation were collected. However, if quantity was not sig-
nificant or could not be reported by manufacturers, only
value of shipments was collected.
Shipments include both commercial shipments and
transfers of products to other plants of the same com-
pany. For industries in which a considerable portion of the
total shipments is transferred to other plants of the same
company, separate information on interplant transfers also
was collected. Moreover, for products that are used to a
large degree within the same establishment as materials
or components in the fabrication of other products, total
production and often consumption of the item within the
plant (quantity produced and consumed) was collected.
Typically, the information on production also was collected
for products for which there are significant differences
between total production and shipments in a given year
because of wide fluctuations in finished goods invento-
ries. Other measures of output of products with long pro-
duction cycles were used as appropriate and feasible.
PRIMARY PRODUCT CLASS CODE
This file presents selected statistics for establishments
according to their degree of specialization in products pri-
mary to their industry. This field contains either the six-
digit North American Industrial Classification System
(NAICS) industry code corresponding to all establishments
in the industry, or the seven-digit NAICS product class
code for all establishments within the industry that are
specialized in a particular product class. Product class spe-
cialization is determined by evaluating the ratio of the
largest primary product class shipments to total product
shipments (primary plus secondary, excluding miscella-
neous receipts) for the establishment.
PRODUCTION-WORKER HOURS
This item covers hours worked or paid for at the plant,
including actual overtime hours (not straight-time equiva-
lent hours). It excludes hours paid for vacations, holidays,
or sick leave.
QUANTITY OF ELECTRIC ENERGY CONSUMED FOR
HEAT AND POWER
Data on the cost of purchased electric energy were col-
lected on all census forms. However, data on the quantity
of purchased electric energy were collected only on the
Annual Survey of Manufactures (ASM) form. In addition,
information is collected on the quantity of electric energy
generated by the establishment and the quantity of elec-
tric energy sold or transferred to other plants of the same
company.
RENTAL PAYMENTS
Total rental payments are collected on all census forms.
However, the breakdown between rental payments for
buildings and other structures and rental payments for
machinery and equipment is collected only on the ASM
forms. This item includes rental payments for the use of
all items for which depreciation reserves would be main-
tained if they were owned by the establishment, e.g.,
structures and buildings, and production, office, and
transportation equipment. Excluded are royalties and
other payments for the use of intangibles and depletable
assets and land rents where separable.
When an establishment of a multiestablishment com-
pany was charged rent by another part of the same com-
pany for the use of assets owned by the company, it was
instructed to exclude that cost from rental payments.
However, the book value (original cost) of these company-
owned assets was to be reported as assets of the estab-
lishment at the end of the year.
If there were assets at an establishment rented from
another company and the rents were paid centrally by the
head office of the establishment, the company was
instructed to report these rental payments as if they were
paid directly by the establishment.
A–4 APPENDIX A
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
RETIREMENTS OF DEPRECIABLE ASSETS
Included in this item is the gross value of assets sold,
retired, scrapped, destroyed, etc., during the calendar
year. When a complete operation or establishment
changed ownership, the respondent was instructed to
report the value of the assets sold at the original cost as
recorded in the books of the seller. The respondent also
was requested to report retirements of equipment or
structures owned by a parent company that the establish-
ment was using as if it were a tenant.
TOTAL CAPITAL EXPENDITURES (NEW AND USED)
For establishments in operation and any known plants
under construction, manufacturers were asked to report
their new and used expenditures for (1) permanent addi-
tions and major alterations to manufacturing establish-
ments and (2) machinery and equipment used for replace-
ment and additions to plant capacity if they were of the
type for which depreciation accounts were ordinarily main-
tained.
Totals for expenditures include the costs of assets
leased from nonmanufacturing concerns through capital
leases. New facilities owned by the Federal Government
but operated under contract by private companies and
plant and equipment furnished to the manufacturer by
communities and nonprofit organizations are excluded.
Also excluded are expenditures for land and cost of main-
tenance and repairs charged as current operating
expenses.
For any equipment or structure transferred for the use
of the reporting establishment by the parent company or
one of its subsidiaries, the value at which it was trans-
ferred to the establishment was to be reported. If an
establishment changed ownership during the year, the
cost of the fixed assets (building and equipment) was to
be reported.
VALUE ADDED
This measure of manufacturing activity is derived by
subtracting the cost of materials, supplies, containers,
fuel, purchased electricity, and contract work from the
value of shipments (products manufactured plus receipts
for services rendered). The result of this calculation is
adjusted by the addition of value added by merchandising
operations (i.e., the difference between the sales value
and the cost of merchandise sold without further manufac-
ture, processing, or assembly) plus the net change in fin-
ished goods and work-in-process between the beginning-
and end-of-year inventories.
For those industries where value of production is col-
lected instead of value of shipments, value added is
adjusted only for the change in work-in-process invento-
ries between the beginning and end of year. For those
industries where value of work done is collected, the value
added does not include an adjustment for the change in
finished goods or work-in-process inventories.
‘‘Value added’’ avoids the duplication in the figure for
value of shipments that results from the use of products
of some establishments as materials by others. Value
added is considered to be the best value measure avail-
able for comparing the relative economic importance of
manufacturing among industries and geographic areas.
VALUE OF SHIPMENTS
This item covers the received or receivable net selling
values, f.o.b. plant (exclusive of freight and taxes), of all
products shipped, both primary and secondary, as well as
all miscellaneous receipts, such as receipts for contract
work performed for others, installation and repair, sales of
scrap, and sales of products bought and sold without fur-
ther processing. Included are all items made by or for the
establishments from material owned by it, whether sold,
transferred to other plants of the same company, or
shipped on consignment. The net selling value of products
made in one plant on a contract basis from materials
owned by another was reported by the plant providing the
materials.
In the case of multiunit companies, the manufacturer
was requested to report the value of products transferred
to other establishments of the same company at full eco-
nomic or commercial value, including not only the direct
cost of production but also a reasonable proportion of ‘‘all
other costs’’ (including company overhead) and profit.
In addition to the value for NAICS defined products,
aggregates of the following categories of miscellaneous
receipts are reported as part of a total establishment’s
value of product shipments:
1. Reported contract work—Receipts for work or services
that a plant performed for others on their materials.
2. Value of resales—Sales of products brought and sold
without further manufacture, processing, or assembly.
3. Other miscellaneous receipts—Such as repair work,
installation, sales of scrap, etc.
Industry primary product value of shipments represents
one of the three components of value of shipments. These
components are:
1. Primary products value of shipments.
2. Secondary product value of shipments.
3. Total miscellaneous receipts.
Primary product shipments is used in the calculations of
industry specialization ratio and industry coverage ratio.
The term ‘‘Value of primary products shipments made in
this industry’’ is used in this publication and refers to the
same data.
APPENDIX A A–5
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
Duplication in Cost of Materials and Value of
Shipment
The aggregate of the cost of materials and value of
shipments figures for industry groups and for all manufac-
turing industries includes large amounts of duplication
since the products of some industries are used as materi-
als by others. This duplication results, in part, from the
addition of related industries representing successive
stages in the production of a finished manufactured prod-
uct. Examples are the addition of flour mills to bakeries in
the food group and the addition of pulp mills to paper
mills in the paper and allied products group of industries.
Estimates of the overall extent of this duplication indicate
that the value of manufactured products exclusive of such
duplication (the value of finished manufactures) tends to
approximate two-thirds of the total value of products
reported in the annual survey.
Duplication of products within individual industries is
significant within a number of industry groups, e.g.,
machinery and transportation industries. These industries
frequently include complete machinery and their parts. In
this case, the parts made for original equipment are mate-
rials consumed for assembly plants in the same industry.
Even when no significant amount of duplication is
involved, value of shipments figures are deficient as mea-
sures of the relative economic importance of individual
manufacturing industries or geographic areas because of
the wide variation in ratio of materials, labor, and other
processing costs of value of shipments, both among
industries and within the same industry.
Before 1962, cost of materials and value of shipments
were not published for some industries which included
considerable duplication. Since then, these data have been
published for all industries at the U.S. level and beginning
in 1964, for all geographic levels.
Specialization and Coverage Ratios
These items are not collected on the report forms but
are derived from the data shown in Table 3. An establish-
ment is classified in a particular industry if its shipments
of primary products of that industry exceed in value its
shipments of the products of any other single industry.
An establishment’s shipments include those products
assigned to an industry (primary products), those consid-
ered primary to other industries (secondary products), and
receipts for miscellaneous activities (merchandising, con-
tract work, resales, etc.). Specialization and coverage
ratios have been developed to measure the relationship of
primary product shipments to the data on shipments for
the industry shown in Tables 1a through 5 and data on
product shipments shown in Tables 6a and 6b.
Specialization ratio represents the ratio of primary
product shipments to total product shipments (primary
and secondary, excluding miscellaneous receipts) for the
establishments classified in the industry.
Coverage ratio represents the ratio of primary products
shipped by the establishments classified in the industry to
the total shipments of such products that are shipped by
all manufacturing establishments wherever classified.
A–6 APPENDIX A
1997 ECONOMIC CENSUS
U.S. Census Bureau, 1997 Economic Census
Appendix B.
NAICS Codes, Titles, and Descriptions
331525 COPPER FOUNDRIES (EXCEPT DIE-CASTING)
This U.S. industry comprises establishments primarily
engaged in pouring molten copper into molds to manufac-
ture copper castings. Establishments in this industry pur-
chase copper made in other establishments.
The data published with NAICS code 331525 include
the following SIC industry:
3366 Copper foundries
APPENDIX B B–1
MANUFACTURING—INDUSTRY SERIES
U.S. Census Bureau, 1997 Economic Census
Appendix C.
Coverage and Methodology
MAIL/NONMAIL UNIVERSE
The manufacturing universe includes about 400,000
establishments. This number includes those industries in
the North American Industry Classification System (NAICS)
definition of manufacturing, but not those industries leav-
ing the manufacturing sector in the classification change.
The amounts of information requested from manufactur-
ing establishments were dependent upon a number of fac-
tors. The more important considerations were the size of
the company and whether it was included in the annual
survey of manufactures (ASM). The methods of obtaining
information for the various subsets of the universe to
arrive at the aggregate figures shown in the publication
are described below:
1. Small single-establishment companies not sent a
report form.
Approximately 40 percent of the manufacturing
establishments were small single-establishment com-
panies that were excused from filing a census report.
Selection of these establishments was based on two
factors: annual payroll and our ability to assign the
correct six-digit NAICS industry classification to the
establishment. For each four-digit Standard Industrial
Classification (SIC) industry code, an annual payroll
cutoff was determined. These cutoffs were derived so
that the establishments with payroll less than the cut-
off were expected to account for no more than 3 per-
cent of the value of shipments for the industry. Gener-
ally, all single-establishment companies with less than
5 employees were excused, while all establishments
with more than 20 employees were mailed forms.
Establishments below the cutoff that could not be
directly assigned a six-digit NAICS code were mailed a
classification report which requested information for
assigning NAICS industry codes. Establishments below
the cutoff that could be directly assigned a six-digit
NAICS code were excused from filing any report. For
below cutoff establishments, information on the
physical location, payroll, and receipts was obtained
from the administrative records of other Federal agen-
cies under special arrangements that safeguarded
their confidentiality.
Estimates of data for these small establishments
were developed using industry averages in conjunc-
tion with the administrative information. The value of
shipments and cost of materials were not distributed
among specific products and materials for these
establishments but were included in the product and
material ‘‘not specified by kind’’ (nsk) categories.
The industry classification codes included in the
administrative-record files were assigned on the basis
of brief descriptions of the general activity of the
establishment. As a result, an indeterminate number
of establishments were erroneously coded to a four-
digit SIC industry and then erroneously re-coded to a
six-digit NAICS industry. This was especially true
whenever there was a relatively fine line of demarca-
tion between industries or between manufacturing
and nonmanufacturing activity.
Sometimes the administrative-record cases had
only two- or three-digit SIC group classification codes
available in the files. For the 1997 Economic Census –
Manufacturing, these establishments were sent a
separate classification form, which requested informa-
tion on the products and services of the establish-
ment. This form was used to code many of these
establishments to the appropriate six-digit NAICS
level. Establishments that did not return the classifica-
tion form were coded later to those six-digit NAICS
industries identified as ‘‘All other’’ industries within
the given subsector.
As a result of these situations, a number of small
establishments may have been misclassified by indus-
try. However, such possible misclassification has no
significant effect on the statistics other than on the
number of companies and establishments.
The total establishment count for individual indus-
tries should be viewed as an approximation rather
than a precise measurement. The counts for establish-
ments with 20 employees or more are far more reli-
able than the count of total number of establishments.
2. Establishments sent a report form.
The establishments covered in the mail canvass
were divided into three groups:
a. ASM sample establishments.
This group accounts for approximately 15 per-
cent of all manufacturing establishments. The ASM
panel covers all the units of large manufacturing
establishments as well as a sample of the medium
and smaller establishments. The probability of
selection was proportionate to size. For more infor-
mation, see the Description of the ASM Survey
Sample.
APPENDIX C C–1
MANUFACTURING
U.S. Census Bureau, 1997 Economic Census
In an economic census year, the ASM report form
(MA-1000) replaces the first page of the regular
census form for those establishments included in
the ASM. In addition to information on employ-
ment, payroll, and other items normally requested
on the regular census form, establishments in the
ASM sample were requested to supply additional
information on gross book value of assets and
capital expenditures. ASM establishments were also
requested to provide information on retirements,
depreciation, rental payments, and supplemental
labor costs. For establishments not included in the
ASM, these additional items were estimated using
relationships observed in the ASM establishment
data. The census statistics for these variables are a
sum of the ASM establishment data and the esti-
mated data for non-ASM establishments. ASM
establishments were also requested to provide
information for selected purchased services. The
census statistics for the purchased service items
were derived solely from the ASM establishments.
See Appendix A, Explanation of Terms for an expla-
nation of these items. The census part of the report
form is 1 of 220 versions containing product, mate-
rial, and special inquiries. The diversity of manufac-
turing activities necessitated the use of this many
forms to canvass the 480 manufacturing industries.
Each form was developed for a group of related
industries.
Appearing on each form was a list of products
primary to the group of related industries as well
as secondary products and miscellaneous services
that establishments classified in these industries
were likely to perform. Respondents were
requested to identify the products, the value of
each product, and, in many cases, the quantity of
the product shipped during the survey year. Space
also was provided for the respondent to describe
products not specifically identified on the form.
The report form also contained a materials-
consumed inquiry which varied from form to form
depending on the industries being canvassed. The
respondents were asked to review a list of materi-
als generally used in their production processes.
From this list, each establishment was requested to
identify those materials consumed during the sur-
vey year, the cost of each, and, in certain cases, the
quantity consumed. Once again, space was pro-
vided for the respondent to describe significant
materials not identified on the form.
A wide variety of special inquiries was included
to measure activities peculiar to a given industry,
such as operations performed and equipment used.
b. Large and medium establishments (non-ASM).
Approximately 30 percent of all manufacturing
establishments were included in this group. A vari-
able cutoff, based on administrative-record payroll
data and determined on an industry-by-industry
basis, was used to select those establishments that
were to receive 1 of the 220 economic census –
manufacturing regular forms. The first page,
requesting establishment data for items such as
employment and payroll, was standard but did not
contain the detailed statistics included on the ASM
form. The product, material, and special inquiry
sections supplied were based on the historical
industry classification of the establishment.
c. Small single-establishment companies (non-ASM).
This group includes approximately 15 percent of
all manufacturing establishments. For those indus-
tries where application of the variable cutoff for
administrative-record cases resulted in a large num-
ber of small establishments being included in the
mail canvass, an abbreviated or short form was
used. These establishments received 1 of the 31
versions of the short form, which requested sum-
mary product and material data and totals but no
details on employment, payroll, cost of materials,
inventories, and capital expenditures.
Use of the short form has no adverse effect on
published totals for the industry statistics because
the same data were collected on the short form as
on the long form. However, detailed information on
products and materials consumed was not col-
lected on the short form; thus, its use would
increase the value of the nsk categories.
INDUSTRY CLASSIFICATION OF
ESTABLISHMENTS
Each of the establishments covered in the 1997 Eco-
nomic Census – Manufacturing was classified in 1 of 480
industries (473 manufacturing industries and 7 former
manufacturing industries) in accordance with the industry
definitions in the 1997 NAICS Manual. This is the first edi-
tion of the NAICS Manual and it is a major change from the
1987 SIC Manual that was used previously. Appendix A of
the 1997 NAICS Manual notes the comparability between
the 1987 SIC and 1997 NAICS classification systems. When
applicable, Appendix G of this report shows the product
class and product comparability between the two systems
for data in this report.
In the NAICS system, an industry is generally defined as
a group of establishments that have similar production
processes. To the extent practical, the system uses supply-
based or production-oriented concepts in defining indus-
tries. The resulting group of establishments must be sig-
nificant in terms of number, value added by manufacture,
value of shipments, and number of employees.
C–2 APPENDIX C
MANUFACTURING
U.S. Census Bureau, 1997 Economic Census
The coding system works in such a way that the defini-
tions progressively become narrower with successive
additions of numerical digits. In the manufacturing sector
for 1997, there are 21 subsectors (three-digit NAICS), 86
industry groups (four-digit NAICS), 184 NAICS industries
(five-digit NAICS) that are comparable with Canadian and
Mexican classification, and 473 U.S. industries (six-digit
NAICS). This represents an expansion of the four-digit SIC-
based U.S. industries from 459 in 1987. Product classes
and products of the manufacturing industries have been
assigned codes based on the industry from which they
originate. In the new system, there are about 1,500 prod-
uct classes (seven-digit codes), about 6,000 census prod-
ucts, and an additional 3,700 CIR products (ten-digit
codes). The ten-digit products are considered the primary
products of the industry with the same first six digits.
These counts do not include the seven former manufactur-
ing industries that are included in the 1997 Economic Cen-
sus – Manufacturing.
For the 1997 Economic Census – Manufacturing, all
establishments were classified in particular industries
based on the products they produced. If an establishment
made products of more than one industry, it was classified
in the industry with the largest product value. For 1997,
there were no ‘‘resistance rules’’ or ‘‘frozen industries.’’
In ASM years, establishments included in the ASM
sample with certainty weights are reclassified by industry
only if the change in the primary activity from the prior
year is significant or if the change has occurred for 2 suc-
cessive years. This procedure prevents reclassification
when there are minor shifts in product mix.
In ASM years, establishments included in the ASM
sample with noncertainty weight are not shifted from one
industry classification to another. They are retained in the
industry where they were classified in the base census
year. However, in the following census year, these ASM
plants are allowed to shift from one industry to another.
The results of these rules covering the switching of
plants from one industry classification to another are that
some industries comprise different mixes of establish-
ments in different survey years. Hence, comparisons
between prior-year and current-year published totals, par-
ticularly at the six-digit NAICS level, should be viewed
with caution. This is particularly true for the comparison
between the data shown for a census year versus the data
shown for the previous ASM year.
As previously noted, the small establishments that may
have been misclassified by industry are usually
administrative-record cases whose industry codes were
assigned on the basis of incomplete descriptions of the
general activity of the establishment. Such possible mis-
classifications have no significant effect on the statistics
other than on the number of companies and establish-
ments.
Establishments frequently make products classified
both in their industry (primary products) and other indus-
tries (secondary products). Industry statistics (employ-
ment, payroll, value added by manufacture, value of ship-
ments, etc.) reflect the activities of the establishments
which may make both primary and secondary products.
Product statistics, however, represent the output of all
establishments without regard for the classification of the
producing establishment. For this reason, when relating
the industry statistics, especially the value of shipments,
to the product statistics, the composition of the industry’s
output should be considered.
The extent to which industry and product statistics may
be matched with each other is measured by the primary
product specialization ratio and the coverage ratio. The
primary product specialization ratio is the proportion of
industry shipments accounted for by the primary products
of establishments classified in the industry. The coverage
ratio is the proportion of product shipments accounted for
by establishments classified in the industry.
ESTABLISHMENT BASIS OF REPORTING
The economic census – manufacturing is conducted on
an establishment basis. A company operating at more
than one location is required to file a separate report for
each location or establishment. The ASM also is conducted
on an establishment basis, but separate reports are filed
for just those establishments selected in the sample. Com-
panies engaged in distinctly different lines of activity at
one location are requested to submit separate reports if
the plant records permit such a separation and if the
activities are substantial in size.
In 1997, as in earlier years, a minimum size limit was
set for inclusion of establishments in the census. All estab-
lishments employing one person or more at any time dur-
ing the census year are included. The same size limitation
has applied since 1947 in censuses and annual surveys of
manufactures. In the 1939 and earlier censuses, establish-
ments with less than $5,000 value of products were
excluded. The change in the minimum size limit in 1947
does not appreciably affect the historical comparability of
the census figures except for data on number of establish-
ments for a few industries.
The 1997 Economic Census – Manufacturing excludes
data for central administrative offices (CAOs). These
would include separately operated administrative offices,
warehouses, garages, and other auxiliary units that ser-
vice manufacturing establishments of the same company.
These data are published in a separate report series.
DESCRIPTION OF THE ASM SURVEY SAMPLE
The annual survey of manufactures (ASM) sample is
drawn for the second survey year after a census. The most
recent sample was drawn for the 1994 survey year based
on the 1992 Census of Manufactures. This sample will be
in place through the 1998 ASM.
APPENDIX C C–3
MANUFACTURING
U.S. Census Bureau, 1997 Economic Census
In 1992, there were approximately 370,000 individual
manufacturing establishments. For sample efficiency and
cost considerations, the 1992 manufacturing population
was partitioned into two components for developing esti-
mates within the ASM; a mail stratum and a nonmail stra-
tum.
Mail stratum. The mail stratum of the survey is com-
prised of larger single-location manufacturing companies
and all manufacturing establishments of multiunit compa-
nies (companies that operate at more than one physical
location). Approximately 230,000 of the 370,000 estab-
lishments in the 1992 census were assigned to the mail
stratum. On an annual basis, the mail stratum is supple-
mented with larger, newly active single-location compa-
nies identified from a list provided by the Internal Revenue
Service (IRS) and new manufacturing locations of multiunit
companies identified from the Census Bureau’s Company
Organization Survey (COS).
For the 1994 survey, a new sample of approximately
58,000 individual establishments was selected from the
mail stratum assembled from the 1992 census. Supple-
mental samples representing both 1993 and 1994 births
(newly active establishments that were not included in the
1992 census) were also selected. Establishments selected
for the sample are mailed an ASM survey questionnaire for
each year through 1998.
The 1994-98 ASM sample design is similar to the one
used since 1984. Companies in the 1992 Census of Manu-
factures with manufacturing shipments of at least $500
million were defined as company certainties. For these
large companies, each manufacturing establishment is
included in the mail sample. For the 1994-98 sample,
there are approximately 650 certainty companies collec-
tively accounting for over 18,000 establishments.
For the remaining portion of the mail component of the
survey, the establishment was defined as the sample unit.
All establishments with 250 employees or more were
defined as employment certainties. In addition, all estab-
lishments producing products in SIC 3571 (Electronic
Computers) were defined as certainties. Across these three
arbitrary certainty classes, there were approximately
25,000 establishments included in the sample with cer-
tainty. Collectively, these certainty establishments
accounted for approximately 80 percent of the total value
of shipments in the 1992 Census of Manufactures.
Smaller establishments in the remaining portion of the
mail stratum were sampled with probabilities ranging
from .02 to 1.00. The initial probabilities of selection
assigned to these establishments were proportionate to a
measure-of-size determined for each establishment. The
measure-of-size was a function of the establishment’s
1992 industry classification, its 1992 product class data,
and the historical variability of the year-to-year estimates
of the product class estimates. For each product class
(1,755) and four-digit industry (459), a desired reliability
constraint was specified. Using a technique developed by
Dr. James R. Chromy of the Research Triangle Institute, the
initial establishment probabilities were optimized such
that the expected sample satisfied all industry and prod-
uct class reliability constraints while the sample size was
minimized. This technique reduces the likelihood of
selecting nonrepresentative samples for individual product
classes or industries.
This method of assigning probabilities based on prod-
uct class shipments is motivated by our primary desire to
produce reliable estimates of both product class and
industry shipments. The high correlation between ship-
ments and employment, value-added, and other general
statistics assures that these variables will also be well rep-
resented by the sample. The actual sample selection pro-
cedure uses an independent chance of selection method
(Poisson sampling) which permits us to prevent small
establishments from being selected in consecutive
samples without introducing a bias into the survey esti-
mates.
Nonmail component. The initial nonmail component of
the survey was comprised of approximately 140,000
small, single-establishment companies that were tabulated
as administrative records in the 1992 Census of Manufac-
tures. The nonmail stratum is also supplemented annually
using the list of newly active single-location companies
provided by the Internal Revenue Service (IRS) and payroll
cutoffs. Companies with payroll below the payroll cutoff
are added to the nonmail stratum. For this portion of the
population, sampling is not used. The data for this group
are estimated based on selected information obtained
annually from the administrative records of the IRS and
Social Security Administration (SSA). This administrative
information, which includes payroll, total employment,
industry classification, and physical location, is obtained
under conditions which safeguard the confidentiality of
both tax and census records.
DESCRIPTION OF THE ASM ESTIMATING
PROCEDURE
Most of the ASM estimates derived for the mail stratum
are computed using a difference estimator. At the estab-
lishment level, there is a strong correlation between the
current-year data values and the corresponding 1992
(base) data values. Therefore, within the mailed stratum,
for each item at each level of aggregation, an estimate of
the ‘‘difference’’ between the current year and the base
year is computed from sample cases and added to the cor-
responding base-year values. For the 1993-1997 ASM esti-
mates, the 1992 Census of Manufactures values serve as
the base year. For the 1998 ASM, the base will be updated
to be the 1997 Economic Census – Manufacturing.
Due to the positive year-to-year correlation, estimates
derived using this methodology are generally more reli-
able than comparable estimates developed from the cur-
rent sample data alone. Estimates for the capital expendi-
tures variables are not generated using the difference
C–4 APPENDIX C
MANUFACTURING
U.S. Census Bureau, 1997 Economic Census