# stata version of CPS, EARNWEEK for ASEC sample, years before 1989

**URL:** <https://forum.ipums.org/t/stata-version-of-cps-earnweek-for-asec-sample-years-before-1989/2000>\
**Category:** CPS\
**Created:** [November 6, 2017, 10:53pm UTC](https://forum.ipums.org/t/stata-version-of-cps-earnweek-for-asec-sample-years-before-1989/2000 "2017-11-06T22:53:00Z")\
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**Author:** ![hyunyeolkim](https://avatars.discourse-cdn.com/v4/letter/h/ce7236/32.png) [@hyunyeolkim](https://forum.ipums.org/u/hyunyeolkim)\
**Post date:** [November 6, 2017, 10:53pm UTC](https://forum.ipums.org/t/stata-version-of-cps-earnweek-for-asec-sample-years-before-1989/2000/1 "2017-11-06T22:53:00Z")

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How can we get stata version of CPS outgoing rotation group variable EARNWEEK for ASEC sample, years before 1989?

It seems there is no stata read (do) file that allows me to read the CPS ASEC data in dat file from NBER website.

I’ve checked other data sources such as CERP, Census but it’s either that they do not have early years of ASEC data (Census) or they did not combine the outgoing rotation group variables in the ASEC file.

Also I am curious about the source of reasoning that why the EARNWEEK variable is unreliable for ASEC sample before 1989.

(i.e. the exact reason that IPUMS did not contain EARNWEEK for ASEC sample 1982-1988.)

That way I might be able to figure out a way to use those information with some adjustment.

Thank you.

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