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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

Abstract: 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)
Date: 2009-04
Note: ITI
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Related works:
Working Paper: Concording U.S. Harmonized System categories over time (2012) Downloads
Working Paper: Concording U.S. Harmonized System Categories Over Time (2009) Downloads
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