Sustainable hydropower development under the Belt and Road Initiative: Role of international cooperation and its carbon reduction effects.
一帯一路構想における持続可能な水力発電開発：国際協力の役割とその炭素削減効果 (AI 翻訳)
B. Lin, Jinhan Li
🤖 gxceed AI 要約
日本語
本論文は、BRIを国際協力の自然実験として捉え、121カ国の2000-2022年のパネルデータを用いて水力発電と炭素排出への影響を分析。差分の差法により、BRI参加国は非参加国と比べて水力発電が15.2%増加、炭素排出が約3.3%減少することを発見。技術効果と規模効果が媒介し、中所得国で効果が大きい。
English
This study uses the Belt and Road Initiative (BRI) as a natural experiment to estimate its effect on renewable hydropower generation and carbon emissions. Analyzing panel data from 121 countries (2000-2022) with a multi-period DID approach, it finds that BRI participation leads to a 15.2% increase in hydropower and a 3.3% reduction in carbon emissions, mediated by technology and scale effects, with stronger impacts in middle-income economies.
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
日本にとって直接的な政策連動は薄いが、アジア地域での国際的なエネルギー協力の効果を示す実証研究として、日本の海外インフラ支援（JICA等）やGX政策の国際展開に示唆を与える。
In the global GX context
This paper provides causal evidence on how large-scale international cooperation (BRI) can accelerate renewable hydropower deployment and reduce emissions, offering valuable insights for global energy transition policies, particularly for developing countries and multilateral frameworks.
👥 読者別の含意
🔬研究者:Provides rigorous causal evidence on the role of international cooperation in renewable energy development, advancing the literature on energy transition and global policy.
🏛政策担当者:Offers empirical support for designing international energy partnerships and infrastructure initiatives to promote clean energy and reduce carbon emissions.
📄 Abstract（原文）
Hydropower development could strengthen domestic water management while generating substantial clean, renewable electricity. However, developing economies often struggle to sustainably support the high costs and extended timelines of hydropower projects. Cross-border financing and cooperation break down technological and financial barriers, serving as crucial channels to address hydropower development challenges and achieve equitable global energy transition-yet systematic causal evidence on these mechanisms remains limited. This study leverages the Belt and Road Initiative (BRI) as a large-scale natural experiment in international cooperation and employs panel data from 121 countries spanning the period 2000-2022 to estimate its effect on renewable hydropower generation. A multi-period difference-in-differences (DID) framework is used and robustness is tested using the Callaway-Sant'Anna DID (CSDID), placebo tests, and supplementary validations. The results reveal that: (1) BRI participating countries experienced a 15.2% increase in hydropower generation compared to non-participants, and the BRI accounts for roughly 16.3% of the hydropower growth along the initiative's routes. (2) BRI hydropower projects are associated with an approximate 3.3% reduction in carbon emissions. (3) The BRI promotes hydropower development through technology and scale effects. (4) The BRI's impact varies nonlinearly with economic development, with the strongest hydropower effects in middle-income economies. It is also more effective in countries with high industrialization, less renewable energy and early membership. These findings offer empirical support and policy insights for strengthening BRI energy partnerships and cross-border hydropower cooperation, with significant implications for a cleaner, more equitable global energy transition.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1016/j.jenvman.2026.129084first seen 2026-05-15 21:40:21
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