Concording U.S. Harmonized System Categories Over Time
May 2009
Working Paper Number:
CES-09-11
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.
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import,
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census bureau
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National Science Foundation,
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Journal of Economic Literature,
United States Census Bureau,
Harmonized System
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