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脱成長と民主的計画政策はいかに実施可能か：実証的・理論的検討

How Can Degrowth and Democratic Planning Policies be Implemented? An Empirical and Theoretical Investigation (原題)

Cosku Mihci

Journal of Sustainability📚 査読済 / ジャーナル2026-10-09#政策
DOI: 10.55845/2kx3gq19
原典: https://doi.org/10.55845/2kx3gq19
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🤖 gxceed AI 要約

日本語

脱成長と民主的計画に基づく政策パッケージの実装可能性を、環境拡張型多地域産業連関データで6カ国（米・独・英・中・土・南ア）について試算した研究。破壊的産業の生産縮小、労働時間短縮、所得再分配、最低所得保障を組み合わせることで、技術進歩が従来通りでも排出量を56%削減でき、IPCCが示す2035年まで60%削減に近づくと結論づける。ただし雇用影響への補完策が必要で、資本主義の成長至上主義との両立困難性も論じている。

English

Using an environmentally extended multi-regional input–output dataset, this study models a degrowth policy mix—cutting output in ecologically destructive sectors, shorter work hours, income redistribution, and guaranteed minimum income—across the US, Germany, UK, China, Turkey, and South Africa. Combined with business-as-usual technology, emissions fall 56%, approaching the IPCC's 60% reduction by 2035, though employment impacts need complementary measures. The authors argue such policies sit uneasily with capitalism's growth imperative and propose democratic planning as an alternative.

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

日本では脱成長論は政策主流ではなく、SSBJ・有報開示や企業の排出削減計画とは直接接続しにくい。ただし「破壊的産業の縮小」や労働時間短縮といった需要側政策の発想は、長期脱炭素戦略や産業構造転換の議論を相対化する視座として参考になる。

In the global GX context

This paper sits outside mainstream disclosure scholarship (TCFD/ISSB/CSRD) but speaks to the broader debate on whether incremental transition finance and corporate target-setting can deliver Paris-aligned pathways. Its demand-side and redistribution framing offers a critical counterpoint to growth-based transition narratives in global climate policy.

👥 読者別の含意

🔬研究者:脱成長政策の排出削減効果を多地域産業連関モデルで定量化した数少ない実証例として、需要側政策研究の参照点になる。

🏛政策担当者:労働時間短縮や所得再分配を伴う需要側政策の排出削減ポテンシャルと雇用影響を、長期戦略策定の参考にできる。

📄 Abstract（原文）

Despite the 2015 Paris Agreement targets, global greenhouse gas emissions continue to rise, highlighting the need for more radical action. Degrowth, as a planned reduction in resource use, seeks to balance economic goals with ecological sustainability, improve well-being, and reduce inequality. This study empirically examines the implementation of degrowth and democratic planning policies to address escalating ecological crises and socioeconomic inequalities. It explores the structural transformations needed to support degrowth, especially their viability beyond capitalism. Using an environmentally extended multi-regional input–output dataset, the study models the impact of a degrowth policy mix in six countries: the United States, Germany, the United Kingdom, China, Turkey, and South Africa. The four key policies considered include reducing output in ecologically destructive sectors, reducing work hours, redistributing income, and implementing guaranteed minimum income. These policies, set within a democratic planning framework, target both demand and supply sides to reduce emissions and income inequality. Collectively, the six countries contributed 24,044,285 kilotons of carbon dioxide equivalent emissions in 2021. Under the proposed degrowth policies and “business as usual” technological advances, emissions are projected to decrease by 56%, aligning with recommendations of the Intergovernmental Panel on Climate Change for a 60% reduction by 2035. Results indicate that these policies could significantly mitigate emissions but would require complementary measures (e.g., work-hour reductions) to manage employment impacts. This study argues that such policies may be difficult to reconcile with capitalism’s growth imperative and proposes a democratic planning framework as an alternative approach for prioritizing social and ecological well-being over profit.

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