Concording U.S. Harmonized System Categories Over Time
Justin Pierce () and
Peter Schott ()
No 14837, NBER Working Papers from National Bureau of Economic Research, Inc
This paper: outlines an algorithm for concording U.S. ten-digit Harmonized System export and import codes over time; describes the concordances we construct for 1989 to 2004; and provides Stata code that can be used to construct similar concordances for arbitrary beginning and ending years from 1989 to 2007.
JEL-codes: F1 (search for similar items in EconPapers)
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Working Paper: Concording U.S. Harmonized System categories over time (2012)
Working Paper: Concording U.S. Harmonized System Categories Over Time (2009)
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Persistent link: https://EconPapers.repec.org/RePEc:nbr:nberwo:14837
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