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サブサハラ・アフリカにおける気候資金の有効性の再評価：開発成果と制度準備性の役割

Reassessing Climate Finance Effectiveness in Sub‐Saharan Africa: Development Outcomes and the Role of Institutional Readiness (原題)

Ji Qi, Haoqi Qian

Sustainable Development📚 査読済 / ジャーナル2026-08-20#気候金融Origin: CN
DOI: 10.1002/sd.71583
原典: https://doi.org/10.1002/sd.71583

🤖 gxceed AI 要約

日本語

サブサハラ・アフリカ48カ国を対象に、気候資金（緩和・適応）が社会・環境・経済成果に与える影響をPVAR-Xモデルで分析。社会的成果への即時的改善が見られる一方、経済成長への効果は小さく負で、移行コストを示唆。制度準備性は内生変数として共進化し、その役割は成果システムにより異なる。政策は吸収・ガバナンス能力の強化を重視すべきと提言。

English

Using a PVAR-X model for 48 Sub-Saharan African countries (2000-2022), this study finds that climate finance, especially mitigation finance, rapidly improves access to basic services, while economic growth responses are small and persistently negative, consistent with transition costs. Institutional readiness co-evolves endogenously and its role varies across outcome systems, suggesting policy should focus on strengthening absorptive and governance capacities.

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

日本の気候資金供与やJCM等の国際協力において、資金効果を高めるには受入国の制度準備性が重要であることを示す。途上国支援の効果測定や、SSBJに基づく投融資判断にも示唆を与える。

In the global GX context

This paper contributes to global climate finance literature by empirically demonstrating that institutional readiness is a co-evolving factor shaping the effectiveness of climate finance in developing regions. It informs international climate policy and development finance institutions, complementing disclosure frameworks like TCFD/ISSB by highlighting absorptive capacity as a condition for translating finance into outcomes.

👥 読者別の含意

🔬研究者:Provides empirical evidence on the heterogeneous effects of climate finance across outcome dimensions and the role of institutional readiness.

🏢実務担当者:Highlights the importance of assessing institutional readiness in recipient countries when designing or evaluating climate finance projects.

🏛政策担当者:Suggests that climate finance effectiveness depends on strengthening governance and absorptive capacities in recipient countries.

📄 Abstract（原文）

ABSTRACT Climate finance is increasingly central to sustainable development in Sub‐Saharan Africa (SSA), yet its effectiveness remains uncertain. This study examines how social, environmental, and economic outcomes respond to climate finance with institutional readiness modeled as an endogenous, co‐evolving dimension of the development process. The analysis uses a PVAR‐X model for 48 countries from 2000 to 2022 and distinguishes cumulative mitigation and adaptation finance. The most immediate and consistent responses appear in the social dimension. Higher levels of climate finance, and especially mitigation finance, are associated with rapid improvements in access to basic services. Emissions‐growth responses are limited and short‐lived. Economic responses are small and persistently negative, at roughly a tenth to a fifth of a percentage point of growth across the horizon, with patterns consistent with transition and reallocation costs. Institutional readiness responds significantly to climate‐finance shocks on impact, negatively under the baseline ordering, and its estimated links to social and economic outcomes are weak and frequently statistically insignificant. It is therefore best interpreted as a co‐evolving institutional condition whose role varies across outcome systems. Policy efforts should focus on strengthening absorptive and governance capacities so that financial commitments translate into sustained development outcomes.

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