concordance: Product Concordance

A set of utilities for matching products in different classification codes used in international trade research. It supports concordance between the Harmonized System (HS0, HS1, HS2, HS3, HS4, HS5, HS combined), the Standard International Trade Classification (SITC1, SITC2, SITC3, SITC4), the North American Industry Classification System (NAICS combined), as well as the Broad Economic Categories (BEC), the International Standard of Industrial Classification (ISIC), and the Standard Industrial Classification (SIC). It also provides code nomenclature/descriptions look-up, Rauch classification look-up (via concordance to SITC2), and trade elasticity look-up (via concordance to HS0 or SITC3 codes).

Version: 2.0.0
Depends: R (≥ 3.6.0)
Imports: dplyr (≥ 0.8.5), purrr (≥ 0.3.3), rlang (≥ 0.4.5), stringr (≥ 1.4.0), tibble (≥ 3.0.0), tidyr (≥ 1.0.2)
Published: 2020-04-24
Author: Steven Liao [aut, cre], In Song Kim [aut], Sayumi Miyano [aut], Feng Zhu [aut]
Maintainer: Steven Liao <steven.liao at>
License: GPL-2
NeedsCompilation: no
Materials: README NEWS
CRAN checks: concordance results


Reference manual: concordance.pdf


Package source: concordance_2.0.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): concordance_2.0.0.tgz, r-release (x86_64): concordance_2.0.0.tgz, r-oldrel: concordance_2.0.0.tgz
Old sources: concordance archive


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