EU-27におけるグリーンボンド市場の発展と循環性：材料使用と資源生産性
Green Bond Market Development and Circularity in the EU-27: Material Use and Resource Productivity (原題)
Krastev B, Krasteva-Hristova R
🤖 gxceed AI 要約
日本語
本研究は、EU-27諸国におけるグリーンボンド市場の発展が循環材料使用率や資源生産性と関連するかを、2014-2024年のパネルデータを用いて検証した。固定効果モデルや頑健な推計手法を用いたが、統計的に有意な関連は見られなかった。グリーンボンドの発行規模だけでは循環経済の進展を示す十分な証拠とはならず、資金の使途や追加性、検証可能な成果が重要であると結論づけている。
English
This study examines whether green bond market development is associated with circular material use and resource productivity in EU-27 countries using panel data from 2014-2024. Despite robust econometric methods, no statistically significant association was found. The authors conclude that green bond issuance alone is insufficient evidence of circular economy progress; allocation, additionality, and verifiable outcomes are crucial.
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
日本ではグリーンボンド市場が拡大しているが、その実質的な環境効果を検証する研究は少ない。本論文の手法は、日本のグリーンボンドの循環経済への貢献を評価する際の参考になる。また、SSBJ開示やトランジション・ファイナンスの実効性を問う上でも示唆に富む。
In the global GX context
This paper contributes to the global debate on the effectiveness of green bonds in achieving environmental outcomes, a key concern for regulators and investors under frameworks like the EU Green Bond Standard and ISSB disclosure. It highlights the need for outcome-based metrics beyond issuance volumes, informing policy design and market oversight.
👥 読者別の含意
🔬研究者:Provides a rigorous empirical framework for assessing green bond impact on circular economy indicators, with implications for future research on additionality and allocation.
🏢実務担当者:Cautions against using green bond issuance as a proxy for environmental performance; emphasizes the need for transparent allocation and impact reporting.
🏛政策担当者:Informs policy design by showing that green bond market size alone does not guarantee circularity gains, suggesting the need for outcome-based regulation and monitoring.
📄 Abstract（原文）
Green bonds are intended to mobilise capital for environmental investment, yet evidence on their contribution to economy-wide circularity remains limited. This study examines whether national green-bond market development is associated with the circular material use rate and resource productivity in the EU-27. A balanced country-year panel covering 2014-2024 (297 observations) is analysed with country and year fixed effects, six controls, contemporaneous and one- and two-year-lagged green-bond shares, country-clustered standard errors, restricted wild cluster bootstrap-t inference with 9,999 repetitions, and Driscoll-Kraay sensitivity estimates. The complete-control samples contain 270, 243, and 216 observations for the current, L1, and L2 specifications. None of the six baseline models, 20 main robustness-model estimates, or 54 leave-one-country-out re-estimations yields a wild-bootstrap p-value below 0.10. Circular material use coefficients are consistently negative but imprecise, while resource-productivity coefficients change sign across timing and control choices. The findings do not support the two directional hypotheses and indicate no statistically robust conditional association over the observed period. Green-bond market size should therefore not be treated as sufficient evidence of circular-economy progress; allocation, additionality, and verifiable material outcomes remain decisive.
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.20944/preprints202608.1852.v1first seen 2026-08-31 04:38:14 · last seen 2026-09-09 04:30:44
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