Structural production layer decomposition: a new method to measure differences between MRIO databases for footprint assessments

Wieland, Hanspeter and Giljum, Stefan ORCID: and Bruckner, Martin (2018) Structural production layer decomposition: a new method to measure differences between MRIO databases for footprint assessments. Economic Systems Research, 30 (1). pp. 61-84. ISSN 1469-5758

Available under License Creative Commons: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).

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Recent empirical assessments revealed that footprint indicators calculated with various multi-regional input-output (MRIO) databases deliver deviating results. In this paper, we propose a new method, called structural production layer decomposition (SPLD), which complements existing structural decomposition approaches. SPLD enables differentiating between effects stemming from specific parts in the technology matrix, e.g. trade blocks vs. domestic blocks, while still allowing to link the various effects to the total region footprint. Using the carbon footprint of the EU-28 in 2011 as an example, we analyse the differences between EXIOBASE, Eora, GTAP and WIOD. Identical environmental data are used across all MRIO databases. In all model comparisons, variations in domestic blocks have a more significant impact on the carbon footprint than variations in trade blocks. The results provide a wealth of information for MRIO developers and are relevant for policy makers designing climate policy measures targeted to specific stages along product supply chain.

Item Type: Article
Additional Information: This research was financed by the European Commission under the FP7 project "Carbon-Cap" (Grant number 603386). Anne Owen's time was supported by the research programme of the UK Energy Research Centre, supported by the UK Research Councils under [EPSRC award EP/L024756/1] and the RCUK Energy Program's funding for the Centre for Industrial Energy, Materials and Products [grant reference EP/N022645/1]. Supplemental data for this article can be accessed here
Keywords: Carbon footprint, multi-regional input-output analysis, production layer decomposition, structural decomposition analysis, structural path decomposition analysis
Divisions: Departments > Sozioökonomie > Ecological Economics
Version of the Document: Published
Depositing User: Gertraud Novotny
Date Deposited: 28 Jul 2017 13:51
Last Modified: 22 Oct 2019 10:40
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