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Status:Closed    Asked:Sep 07, 2018 - 12:35 AM

Construct PWMETRO for 2012-onward ACS using PWPUMA00

I wish to construct "pwmetro" variable for 2012-onward ACS samples.

I have been able to identify the relationship between new PUMAs and (2010 version) PWPUMA00 codes, but I am not sure how to construct "place of work MSAs" using PWPUMA00? How can I identify which PWPUMA00 fall into particular MSA? (any mapping files similar to MET2013 crosswalk files? https://usa.ipums.org/usa-action/vari...)


Many thanks!

 
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Staff Answer

As it happens, we recently completed our internal work to produce a new "PWMET13" variable that will supply 2013 metro area codes for 2000 and 2005-2016 samples. We plan to release the variable later this fall, in mid-October at the earliest.


Before then, you can make use of the attached supplementary files, which correspond (just as you suggested) with the MET2013 crosswalk files. I see that the User Forum system has truncated the file names, so that two of the files now have the same name (PWMET13_match_errors.xls). They both describe match errors between 2013 MSA's and 2000 PWPUMA's, but one uses 2000 populations (for 2000 samples) and the other uses 2010 populations (for 2005-2011 ACS samples).


Our code assignment protocol for PWMET13 will match MET2013's: we'll assign an MSA code to a PWPUMA if more than 50% of the PWPUMA's population resides in the MSA _and_ the sum of omission and commission errors for the MSA is less than 15%.


If you have any more questions, feel free to reply to this post.

 

Sep 07, 2018 - 08:37 AM

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