デジタル貿易ルールと内包炭素排出：規模・構成・技術効果分析
Digital Trade Rules and Embodied Carbon Emissions: A Scale–Composition–Technique Analysis (原題)
Ying Zhou, Mingye Dong
🤖 gxceed AI 要約
日本語
地域貿易協定におけるデジタル貿易ルールの深度が、二国間の貿易内包炭素排出を削減するかを検証。188経済国・2000〜2023年のパネルで高次元固定効果モデルを推定し、ルール深度が有意に排出を削減することを示す。構成効果と技術効果が寄与し技術効果が支配的だが、規模チャネルの間接効果は非有意。炭素価格の存在下では削減効果が減衰し、環境規制との部分的な代替関係が示唆される。
English
This paper tests whether digital trade rules in regional trade agreements reduce bilateral trade-embodied carbon emissions. Using a rule-depth index from TAPED matched with Eora embodied carbon across 188 economies (2000–2023) and a high-dimensional fixed-effects model with an IV, it finds deeper rules significantly cut emissions, driven mainly by the technique effect. Carbon pricing attenuates the reduction, suggesting partial substitution with environmental regulation.
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
日本はEU・CPTPP等のデジタル貿易協定とカーボンプライシング導入を並行して進めており、ルール設計と国内環境規制の補完関係はSSBJ・有報での気候関連開示や投資家対応にも示唆を与える。
In the global GX context
As ISSB/CSRD push disclosure and CBAM-style border measures expand, this study shows trade-rule design and domestic carbon regulation interact—relevant to how disclosure infrastructure and carbon pricing jointly shape embodied-carbon outcomes globally.
👥 読者別の含意
🔬研究者:貿易ルール深度と内包炭素の因果チャネル（規模・構成・技術）を識別した実証枠組みを提供する。
🏢実務担当者:サプライチェーン内包炭素と炭素価格の相互作用を踏まえ、調達・開示戦略の設計に活用できる。
🏛政策担当者:デジタル貿易協定に環境条項を初期段階から組み込むことの排出削減効果を示唆する。
📄 Abstract（原文）
Digital trade drives global trade expansion, yet its environmental implications remain ambiguous. This paper examines whether digital trade rules in regional trade agreements reduce bilateral trade-embodied carbon emissions, through which channels, and under what conditions. Using a rule depth index from TAPED matched with Eora bilateral embodied carbon, we estimate a high-dimensional fixed-effects model on a bilateral country–pair–year panel covering 188 economies over 2000–2023, with an instrumental variable based on lagged digital governance network size. Deeper rules significantly reduce embodied carbon. The composition and technique effects lower emissions, with the technique effect dominant; the scale channel’s indirect effect is not significant. The reduction is stronger for Global North pairs and highly binding provisions; pioneer exporters gain less, agreement upgrading does not significantly strengthen it, and the reduction varies by rule template. Carbon pricing attenuates the reduction, indicating partial substitution with environmental regulation. An event study, an extensive/intensive margin decomposition, and carbon leakage checks corroborate these findings. Rules advance climate objectives only if environmental provisions enter institutional design from the outset and are backed by domestic regulation. The index captures rule depth through provision coverage and binding force but cannot fully capture implementation quality.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su182010322first seen 2026-10-14 05:01:25
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