icio: Global Value Chain Decomposition of Inter-Country Input-Output Tables

Four global value chain (GVC) decompositions of gross exports from inter-country input-output tables are implemented. The Leontief decomposition derives the value added origin of exports by country and industry, as in Hummels, Ishii and Yi (2001) <doi:10.1016/S0022-1996(00)00093-3>. The Koopman, Wang and Wei (2014) <doi:10.1257/aer.104.2.459> decomposition splits country-level exports into 9 value added components, and the Wang, Wei and Zhu (2013) <doi:10.3386/w19677> decomposition splits bilateral exports into 16 value added components. The Borin and Mancini (2019) <doi:10.1596/1813-9450-8804> decomposition splits country-, sector- or bilateral-level exports into up to 13 value added and GVC components, and also provides a corrected version of the (biased) Koopman-Wang-Wei decomposition. It is the recommended method and reproduces the 'icio' command for 'Stata' described in Belotti, Borin and Mancini (2021) <doi:10.1177/1536867X211045573>.

Version:	1.0.0
Depends:	R (≥ 3.5.0)
Imports:	data.table, matrixStats
Suggests:	testthat, knitr, rmarkdown
Published:	2026-09-07
DOI:	10.32614/CRAN.package.icio
Author:	Sebastian Krantz [aut, cre], Bastiaan Quast [aut], Fei Wang [aut], Victor Stolzenburg [aut], Oliver Reiter [ctb]
Maintainer:	Sebastian Krantz <sebastian.krantz at graduateinstitute.ch>
BugReports:	https://github.com/SebKrantz/icio/issues
License:	GPL-3
URL:	https://sebkrantz.github.io/icio/, https://github.com/SebKrantz/icio
NeedsCompilation:	yes
Citation:	icio citation info
Materials:	README, NEWS
CRAN checks:	icio results

Documentation:

Reference manual:	icio.html , icio.pdf
Vignettes:	Global Value Chain Decomposition with icio (source, R code)

Downloads:

Package source:	icio_1.0.0.tar.gz
Windows binaries:	r-devel: not available, r-release: icio_1.0.0.zip, r-oldrel: icio_1.0.0.zip
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): icio_1.0.0.tgz, r-oldrel (x86_64): icio_1.0.0.tgz

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