Differences between the versions of ACS PUMS?

Stas Kolenikov over 11 years ago

I am aware of three providers of ACS microdata: Census Bureau (currently down due to the government shutdown), IPUMS at University of Missouri (ipums.org), and Missouri Census Data Center (mcdc.missouri.edu). Does anybody know if they are fully compatible with one another? I had issues with different IDs between the IPUMS and the Census versions.

Beth Jarosz over 11 years ago

IPUMS re-codes data to facilitate consistent time-series comparisons (a feature not found in raw Census files). The IPUMS coding scheme is downloadable with their data.
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Stas Kolenikov over 11 years ago

Thanks, Beth.
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Oleh Wolowyna over 11 years ago

There are still 2 questions:

a) I assume that IPUMS works with the BUCEN samples. Thus, why the difference in IDs, and exactly was are these differences?

b) Any differences betwen the Missouri Census Data Center ACS microdata and the other two versions?

Also, IPUMS is at the Univ of Minessota.

Oleh Wolowyna
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Stas Kolenikov over 11 years ago

Thanks, Oleh -- I am so used to typing Missouri everywhere :-\. IPUMS is indeed at UMN.

ICPSR at U of Michigan also provides access to some of the ACS data to the members -- see www.icpsr.umich.edu/.../studies. It is broken down by state, which is hardly convenient.
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