分散型産業連関分析を用いた排出起源別の企業カーボンフットプリント詳細分解
Detailed breakdown of companies carbon footprints per origin of emissions using distributed input output analysis (原題)
Francis Charpentier
🤖 gxceed AI 要約
日本語
分散型産業連関(IO)分析の枠組みを一般化し、企業のカーボンフットプリントを上流バリューチェーン全体の企業別・国別・セクター別の加算的寄与に分解する手法を提示する。従来の単一値やScope1/2/3累積は本枠組みの特殊ケースとなる。さらに企業グループ単位での二重計上を推定するループバック探索法を導出し、OECDのICIOデータ(44セクター・欧州とその他地域)で例示する。
English
This paper generalizes a distributed input-output framework to decompose a company's carbon footprint into additive contributions from all upstream value-chain companies, or any predefined grouping (countries, sectors). Single-value and Scope 1/2/3 accumulation footprints become special cases. It also derives a loopback probing scheme to estimate double counting at company or group level, illustrated with OECD ICIO data (44 sectors, Europe and Rest of World).
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
SSBJ基準やScope3開示が本格化する日本企業にとって、サプライチェーン上流の排出を企業別・地域別に分解し二重計上を可視化する手法は、Scope3算定の精緻化と説明責任に直結する。デジタル請求に基づく集中型手法との比較は、国内の排出量データ基盤整備の議論にも示唆を与える。
In the global GX context
As ISSB/CSRD and Scope 3 disclosure tighten, this distributed IO approach offers a rigorous way to attribute upstream emissions and quantify double counting across value chains—directly relevant to global carbon accounting methodology debates and the centralized (digital billing) vs. distributed framework trade-off.
👥 読者別の含意
🔬研究者:分散型IO分析による企業フットプリント分解と二重計上推定の理論的枠組みを提供する。
🏢実務担当者:Scope3算定の上流寄与を企業・地域別に分解し、二重計上リスクを把握する手法として活用可能。
🏛政策担当者:排出量データ基盤を集中型(デジタル請求)と分散型のどちらで設計するかの政策判断に示唆を与える。
📄 Abstract(原文)
A new approach based on input–output (IO) analysis has emerged recently to estimate the carbon footprints of companies and their products from cradle to gate, using a distributed iterative framework with all companies interacting to solve the high dimensionality IO linear system. Earlier papers have proposed to compute the footprint of a company as a single value, or to decompose it into three components accumulating separately primary and secondary Scope 1/2/3 data. This paper shows the distributed framework can be generalized to decompose the footprint of a given company into the additive contributions of all other companies of its upstream value chain, or into the aggregated contributions of any predefined partitioning of them. In practice, the distributed framework can be applied to predefined coarse-grain decompositions into countries and economic sectors taking part in the company's value chain. The single value footprint or the Scope1/2/3 accumulation footprints proposed in previous papers are two special cases of the general framework. In addition, we derive from the fine-grain decomposition at company level a loopback probing scheme to estimate the double counting inherent in the footprint of any company, or more interestingly, of any group of companies. We illustrate the model on macroeconomic data for 44 sectors and two regions (Europe and Rest of World), using the Inter-Country Input–Output database from the OECD. Future research will need to evaluate the framework on representative field data. Finally, we discuss the merits and limitations of the distributed framework compared to a centralized framework based on digital billing.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jclepro.2026.149296first seen 2026-09-14 04:47:25
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録(無料・3キーワードまで)。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。