Codes and Frequencies
FBPL indicates whether the person's father was born in the United States and, if not, his foreign country of birth.
There are occasionally consistencies in the original CPS data between a person's FBPL value and the BPL value of the person designated as that person's father in the household. For example, a person (PERNUM==3) has an FBPL value of 21030, but the person labeled as that person's father within the household (PERNUM==1) has a BPL value of 20000.
The 1994 data include only about 40 categories, with all other answers coded into a residual "Other/Unknown" category. For 1995 forward, over one hundred categories are recognized, including responses for countries in the Middle East, Africa, and Oceania that were not part of the 1994 data. To achieve comparability across all years, the data must be recoded into the smaller number of categories available in 1994.
Comparability with IPUMS-USA
IPUMS-CPS data on father's birthplace are recoded using the same BPL codes available in IPUMS-USA, but fewer categories are included in the CPS than in the census. State of birth is supplied by the census samples, but only a general "United States" code is given in the CPS. Because fewer codes are included in IPUMS-CPS than in IPUMS-USA, residual categories like "Other Africa" and "Other" are more inclusive in the CPS than in the census. Some specific countries of origin, particularly in Asia and Africa, that were not reported in the census samples for FBPL, did appear in the CPS data; these were given the corresponding codes from the BPL variable for IPUMS-CPS. In the CPS, "Unknown" and "Other" cases were combined into a single category and were given a new code of 96000; in the census samples, "Unknown" cases are distinguished from the residual category of "abroad, not specified."
- All persons.
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