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IND1950
Industry, 1950 basis
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Codes and Frequencies



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Description

IND1950 recodes information contained in the variable IND into the 1950 Census Bureau industrial classification system. Developed to enhance the comparability of industry data in historical U.S. census samples in IPUMS-USA, IND1950 also provides a consistent set of industry codes for IPUMS-CPS from 1968 forward.

For general discussion of the IND1950 variable, users should consult the IPUMS-USA documentation. For discussion of the CPS data on industry that are recoded into IND1950, see IND.

Comparability

Although the universe for this variable changed over time, the codes used in IND1950 are consistent over time. Data on industries for 1962-1967 were not recoded into IND1950 because not enough industry classifications were used in the original data to allow recoding.

Comparability with IPUMS-USA

The industry codes of IND1950 are identical for IPUMS-CPS and IPUMS-USA. This shared classification system does not, however, overcome differences in the universes on industry data in the two sources. Beginning in 1980, the census used age 16 as the lowest age cut-off for employment questions, while the CPS used a cut-off of age 15 beginning in 1980 and of age 14 in earlier years. Because the CPS is designed to measure the labor force experience of civilians, members of the armed forces were not asked this question in the survey. Persons in the military are included in the census and ACS data on IND1950.

Universe

  • 1976-1988 (ASEC): Civilians age 14+ who: were currently employed; or had previously worked and were looking for work; or were not currently in the labor force but had worked in the preceding 5 years.
  • 1989+: Civilians age 15+ who: were currently employed; or had previously worked and were looking for work; or were not currently in the labor force but had worked in the preceding 5 years.

Availability

Years Jan Feb ASEC Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1968 – 1975 - - X - - - - - - - - - -
1976 – 2023 X X X X X X X X X X X X X
2024 X X X X X X X X X X X - -

Flags

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