家計の高度デジタル化は消費と炭素フットプリントの「代替」ではなく「拡大」と結びつく：フランスの事例
High household digitalization is connected to expansion, not substitution, of consumption and carbon footprints in France (原題)
Mina Maxi, Juudit Ottelin
🤖 gxceed AI 要約
日本語
フランスの2020年家計予算調査とEXIOBASEのEE-MRIO炭素強度を組み合わせ、ICT消費と家計炭素フットプリント（CF）の関係を分析。ICT機器・サービスは対象CFの4%と小さいが、ICTと非ICT排出は正に有意に関連し（β=0.080）、「代替」ではなく「共拡大」を示唆。低所得層ほどICT排出シェアが高く、デジタルアクセスは奢侈ではなく必需である可能性を示す。
English
Using France's 2020 Household Budget Survey and EXIOBASE EE-MRIO carbon intensities, this study links ICT consumption to household carbon footprints (CF). ICT devices and services are only 4% of scoped CF, yet ICT and non-ICT emissions are positively associated (β=0.080), consistent with co-expansion rather than substitution. ICT emissions concentrate among higher-income and urban households, while ICT's emissions share is larger for lower-income households, suggesting digital access is a necessity.
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
日本では家計部門の脱炭素とデジタル化政策（GX・DX）が並走するが、本稿は「デジタル化＝脱物質化」という前提に実証的疑問を投げかける。SSBJ・有報でのScope 3家計関連開示や、消費者向け製品・通信サービスの排出削減戦略を検討する日本企業・政策担当者にとって示唆がある。
In the global GX context
Amid global debates on whether digitalization enables dematerialization, this paper provides micro-level evidence from France that ICT and non-ICT emissions co-expand. It informs Scope 3 household-related accounting, consumer-facing decarbonization strategy, and the design of behavior-oriented policies rather than digital-access restrictions, relevant to ISSB/CSRD disclosure discussions on consumption-based emissions.
👥 読者別の含意
🔬研究者:Provides a replicable EE-MRIO + microdata method for linking household ICT consumption to carbon footprints, and challenges substitution assumptions.
🏢実務担当者:Signals that digital products and services may not automatically reduce customer carbon footprints; Scope 3 and consumer engagement strategies should account for co-expansion effects.
🏛政策担当者:Suggests prioritizing behavior-oriented measures (e.g., sustainable consumption, digital skills for green choices) over restricting digital access.
📄 Abstract（原文）
Abstract Digitalization is often presented as a pathway to dematerialization and reduced environmental impacts, yet its implications for households' carbon footprints (CF) remain unclear. This study examines the relationship between Information and Communication Technology (ICT) consumption and household carbon emissions using microdata from the 2020 Household Budget Survey (HBS) for France, combined with environmentally extended multi-regional input-output (EE-MRIO) carbon intensities from EXIOBASE. The scoped household CF covers five categories: ICT tangibles, ICT services, non-ICT tangibles, non-ICT services, and housing energy and motor fuels from housing energy and motor fuels. ICT devices and services account for 4% of the scoped household CF (and 1.9% of the total household CF, including food and housing). Notably, ICT forms a larger emissions share among lower-income households, suggesting digital access serves more as a necessity than a luxury. Despite this modest direct contribution, a positive and significant ICT-non-ICT emissions association (β= 0.080, SE = 0.008) is consistent with co-expansion rather than substitution. However, because the research design is cross-sectional, this association does not by itself identify a causal mechanism. ICT emissions are concentrated among higher-income and urban groups in absolute terms, while the ICT elasticity declines modestly with income (from 0.125 to 0.050; joint test p = 0.06) and is flat across location. Behavioral evidence from an independent dataset shows digital skills are strongly associated with online purchasing; because the datasets cannot be linked at household level, this is consistent with, but does not establish, a digital-capability channel. These findings suggest policy should prioritize targeted, behavior-oriented approaches rather than restricting digital access.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1088/2515-7620/aeadf6first seen 2026-10-01 04:58:33
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