グリーン投資、エネルギー転換、金融市場：2021-2025年の文献の計量書誌学的レビュー

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a structured map of the green finance literature, identifying key themes and research gaps for future studies.

🏢実務担当者:Offers a concise overview of the field, helping corporate sustainability teams benchmark their strategies against current research trends.

🏛政策担当者:Highlights policy-relevant themes and tensions in green finance, useful for designing effective transition policies.

The accelerating expansion of green investment and climate-oriented finance has intensified scholarly interest in the relationship between financial markets and the energy transition. However, as this literature has evolved across partially overlapping streams, there is a clear need to map its recent intellectual structure, thematic concentrations, and bridging areas. This study provides a comprehensive bibliometric review of research indexed in the Web of Science Core Collection, focusing specifically on the intersection of green investments, the energy transition, and financial markets. The analysis covers the period 2021-2025, with the dataset finalized on April 1, 2026. After applying temporal filters and restricting the sample to original research and review articles, a final corpus of 154 documents was established. Bibliometric mapping was performed using VOSviewer (v1.6.20) through co-occurrence analysis of all keywords. Using a minimum occurrence threshold of six and a thesaurus-based normalization procedure, the resulting network identified 27 key terms organized into three distinct thematic clusters. This was further complemented by a TIE/bridges analysis to identify cross-cluster documents. The results reveal that the field is structured around three core domains: green finance and sustainability-oriented transitions; financial market risk and transmission mechanisms; and climate finance, renewable energy, and return dynamics. The bridge analysis demonstrates that the strongest thematic interfaces emerge between market-risk studies and renewable energy finance, as well as between transition-oriented green finance and investment performance debates. By clarifying the recent structure of this rapidly expanding literature, this study identifies existing tensions, highlights policy relevance, and proposes critical directions for future research.

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