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Usually receive overtime, tips, or commissions

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OTPAY is a dichotomous variable indicating whether the respondent receives overtime pay, tips, or commissions. Researchers should use the EARNWT weight with this variable.

OTPAY is one of the Outgoing Rotation/Earner Study questions.


This variable is comparable across years.

According to Technical Paper 66, issued jointly by the Census Bureau and the Bureau of Labor Statistics, individuals eligible for the earner study are civilians age 15 and older in rotation groups 4 or 8 who are not self-employed.  In any given month, approximately 1/4 of the CPS sample is in the earner study and each household should appear in the earner study exactly twice. Based on documentation from Unicon and NBER, and after an inspection of the original CPS data, we recommend that users impose the CPS eligibility restrictions in any analyses of earner study variables.


  • Those eligible for the earner study


Years Jan Feb ASEC Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1994 – 2023 X X - X X X X X X X X X X
2024 X X - X X X - - - - - - -



Unharmonized Variables