I am looking for a way to match the CPS files 1994 - 2010 to the census files at the PUMA / county level to (collapsed at the PUMA/county level) census data (starting 1970).
As I far as I understand, there have been changes in the PUMA definition over time.
Thus, my questions are:
Is there a mapping from historical to current PUMA definitions?
Is there a mapping from IPUMS to CPS PUMAs or is this trivial and uses the same unique identifier?
Looking forward to your response.