Urban Low-Carbon Leadership and State Rescaling: Tokyo’s Cap-and-Trade System
都市の低炭素リーダーシップと国家の再スケーリング：東京都の排出量取引制度 (AI 翻訳)
Yasuo Takao
🤖 gxceed AI 要約
日本語
本論文は、世界初の都市型義務的炭素市場である東京都キャップ＆トレード制度（TCTS）を事例に、都市レベルの排出量取引の制度的有効性とガバナンスへの影響を検討する。2010年からの15年間で、大規模事業所からの排出削減に成功し、企業の環境規範の普及にも貢献した。しかし、余剰クレジットや取引の低調さなど、サブナショナルな炭素市場に共通する構造的課題も明らかになった。都市の政策革新能力、制度学習の重要性、そして炭素価格付けの限界という3つの示唆を導く。
English
This paper examines Tokyo's Cap-and-Trade System (TCTS), the world's first mandatory urban carbon market, analyzing its institutional effectiveness and governance implications over 15 years. The TCTS achieved significant emissions reductions among large facilities and fostered corporate environmental norms, but also faced structural issues like credit surplus and low trading activity. It highlights cities' capacity for policy innovation, the role of institutional learning, and the limits of technocratic carbon pricing for transformative decarbonization.
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
本論文は、東京都のキャップ＆トレード制度という日本発の先駆的施策を詳細に分析しており、日本のGX政策、特にカーボンプライシング導入議論に重要な示唆を与える。SSBJや有報における気候関連開示が進む中、都市レベルでの実効性ある排出削減メカニズムの具体例として、企業や自治体の参考となる。
In the global GX context
This paper offers a rare empirical assessment of a subnational carbon market, contributing to global debates on urban climate governance and policy mobility. It provides lessons for cities worldwide considering cap-and-trade systems, and informs the growing literature on the effectiveness of market-based instruments in achieving deep decarbonization, relevant to TCFD/ISSB frameworks and transition finance.
👥 読者別の含意
🔬研究者:Scholars of urban climate governance and carbon market design will find a detailed case study of policy mobility and institutional rescaling in the world's first mandatory city-level ETS.
🏢実務担当者:Corporate sustainability teams in Tokyo and other cities can learn from the TCTS's design features, such as inclusion of indirect emissions and building efficiency standards, and its impact on corporate behavior.
🏛政策担当者:Urban policymakers considering carbon pricing can draw insights on the TCTS's successes and limitations, particularly regarding credit management and trading activity.
📄 Abstract（原文）
As cities assume increasing responsibility for climate mitigation, an important question is whether subnational carbon markets can function as effective instruments of urban decarbonization. This article examines the institutional effectiveness and governance implications of city-level emissions trading systems, using Tokyo’s Cap-and-Trade System (TCTS)—launched in 2010 as the world’s first mandatory urban carbon market—as an empirical case. Drawing on government data, policy documents, academic studies, and media sources, the analysis investigates how emissions trading was adapted to the metropolitan scale through processes of policy mobility and institutional rescaling. Tokyo’s system illustrates how a global policy instrument can be localized within an urban governance framework by incorporating indirect electricity emissions and building-level efficiency standards into a distinctive regulatory design. Over fifteen years, the TCTS produced significant emissions reductions among large commercial and industrial facilities while contributing to the diffusion of corporate environmental norms. At the same time, its experience reveals structural tensions common to market-based climate instruments at the subnational level, including surplus credits and limited trading activity. The article identifies three broader insights: the capacity of cities to generate policy innovation, the importance of institutional learning in stabilizing new regulatory markets, and the limits of technocratic carbon pricing as a pathway toward transformative urban decarbonisation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.20944/preprints202605.1920.v1first seen 2026-05-30 04:56:32 · last seen 2026-06-03 04:55:35
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