Occupation classifications

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This page lists detailed occupational classification systems and any information on how to map information between them. If this were easy to do we could impute information about persons between data sets based on occupation.

Sample program: Stata program to apply US standard 2

Occupational classifications

Category
system(s)
Domain:
who, where, and when
Number
of
categories
Notes
HISCO Canada, US, and several European countries circa 1880-1900. 1881, according to NAPP information http://hisco.antenna.nl
ISCO-88 International, 1988 5179 job titles in 390 categories International standard classification of occupations from 1988.

See http://www.ilo.org/public/english/bureau/stat/isco/isco88/major.htm for the list and http://www.ilo.org/public/english/bureau/stat/isco/press1.htm for a discussion.

ISCO-68 International, 1968   International Standard Classification of Occupations by ILO from 1968. For more see: http://www.ilo.org/public/english/bureau/stat/isco/isco68/major.htm
ISCO-58 International, 1958   1958 international. http://www.ilo.org/public/english/bureau/stat/isco/isco58/major.htm
NAPP Canada (1881), Great Britain (1881), Norway (1900), and U.S. (1880) about 650 Derived from HISCO. For more information see NAPP and http://www.nappdata.org/data.shtml
NZSCO New Zealand's system as of 2006 98 at 3-digit level; 265 4-digit occs; 600 5-digit occs A list is at http://www.acc.co.nz/wcm001/groups/external_providers/documents/internet/wcmz002333.pdf. They are developing a standardized system with Australia.
Russian system Russia   http://www.magister.msk.ru/library/economic/work/okpdtr.txt
UK SOC 2000 UK 2000 UK Standard Occupational Classification, year 2000. PDF and Excel documentation are at UK ONS site
US occ1950 at IPUMS U.S., 1880 to present 287 Full list is at http://www.ipums.umn.edu/usa/pwork/occ1950b.html. Call it "US standard 1." For more details, see US Census page
US Census 2000, 1% sample US only 510 Full list is at http://www.ipums.umn.edu/usa/volii/00occup.html. For more details, see US Census page
US Census 2000, 5% sample US only 476 Full list is at http://www.ipums.umn.edu/usa/volii/00occup.html. For more details, see US Census page
US Census 1990 US 1990s 504 See US Census page. The system described at http://www.cdc.gov/niosh/soic/ and http://www.cdc.gov/niosh/soic/SOIC_99pd.htm encodes job descriptions into this system.
US Census 1980 U.S. 1980s 504 See US Census page
US Census 1970 US 1970s 441 See US Census page
US Census 1960 US 1960s 296 Full list is at http://www.ipums.umn.edu/usa/volii/96occup.html. For more details, see US Census page
US Census 1950 / occ1950 US only 287 Same as occ1950. See US Census page
US Census 1940 US only, 1939-1940s 228 Full list is at http://www.ipums.umn.edu/usa/volii/94occup.html. For more details, see US Census page
US Census 1930 Full list is at http://usa.ipums.org/usa/volii/occ1930.shtml. For more details, see US Census page
US Census 1920 US only, 1919-1920 574 Full list is at http://www.ipums.umn.edu/usa/volii/92occup.html. For more details, see US Census page
1910 US Census US only, 1909-1910 432 Full list is at http://www.ipums.umn.edu/usa/volii/91occup.html. For more details, see US Census page
1880 US Census US only, 1879-1880 276 Applied to 1850-1880 samples by IPUMS.org. Full list is at http://www.ipums.umn.edu/usa/volii/88occup.html. For more details, see US Census page
US CIP 2000 From US Dept of Education; Current Population Survey See US Census page
US CPS 1962-1967 US 1962-67 Current Population Survey See US Census page
US CPS 1968-1971 US 1968-71 Current Population Survey See US Census page
US CPS 1972-1982 US 1972-82 Current Population Survey See US Census page
US CPS 1983-1991 US 1983-91 Current Population Survey See US Census page
US CPS 1992-2002 US 1992-20021 Current Population Survey See US Census page
US DOT, 5th edition, 1991 US 12841 DOT stands for Dictionary of Occupational Titles, from US Dept of Labor. See DOT page.
US DOT, 4th edition, 1977 US 12099 DOT stands for Dictionary of Occupational Titles, from US Dept of Labor. See DOT page.
US DOT, 3rd edition, 1965 US not known DOT stands for Dictionary of Occupational Titles, from US Dept of Labor. See DOT page.
US DOT, 2nd edition, 1949 US not known DOT stands for Dictionary of Occupational Titles, from US Dept of Labor. See DOT page.
US DOT, 1st edition, 1939 US not known DOT stands for Dictionary of Occupational Titles, from US Dept of Labor. See DOT page.
US O*NET US only From US Dept of Labor; replaces Dictionary of Occupational Titles. See O*NET page.
      Crosswalk to SOC system
SOC 2006 US up to 821; at coarser levels 449, 96, or 23 See SOC and OCCSOC page. These are relevant to OES, SOII, OSH, and STAMP surveys.

Crosswalk to O*NET

SOC 2009 US no recent info See SOC and OCCSOC page. These are relevant to OES, SOII, OSH, and STAMP surveys.

Crosswalk to O*NET

NSF/SESTAT/Natl Survey of College grads US only NSCG
Proposed US standard 2 US only, 1960-present 389 Derived from Census 1990 classification. For more, see this discussion Meyer and Osborne (2005) standard. See Stata program to apply US standard 2.
Proposed US standard 3 US only, 1960-present only 389, tentatively Has tiny imputations added to Meyer and Osborne (2005). For details see Meyer (2006), a preliminary draft of which is here: http://econterms.net/pbmeyer/research/occs/WEAI2006/occ_defns.doc, and this presentation: http://econterms.net/pbmeyer/research/occs/myoccs.ppt. Improvements to come: test whether judges or lawyers are more likely in places, e.g. DC. For more: US occ standard 3
ACS (American Community Survey) US only, circa 2000-present Seems to be the same as the 2000 Census. Not verified, but it's close at least. There's good information at IPUMS. See http://usa.ipums.org/usa/volii/ACScrosswalk.xls and http://usa.ipums.org/usa/volii/documents/occ1990_xwalk.xls
Other SCOs US, Philippines, Singapore Can be gathered from http://en.wikipedia.org/wiki/Standard_Occupational_Classification_System


On "green" occupation categories:

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