低炭素移行への投資:グリーンMSCIインデックスによるカーボンフットプリント削減
Jan Heldmann1, Huong Dieu Dang2, Thomas Brückner1
1Department of Business Administration, University of Bayreuth, Bayreuth, Germany.
Journal of environmental management
|September 1, 2025
まとめ
グリーン・エクイティ・インデックスはCO2排出量を大幅に削減し,ESG評価を向上させ,脱炭素化における役割を検証します. これは,低炭素経済への移行のための優遇資本とグリーンETFへの投資をサポートします.
科学分野:
- 環境金融
- 持続可能な投資
- 気候変動の経済学
背景:
- グリーン・エクイティ・インデックス・プロバイダは 資本を脱炭素化への取り組みに向けることを目指しています
- 環境目標を達成するためのこれらの指標の有効性は,経験的検証を必要とします.
- 持続可能な投資戦略には,標準的なベンチマークと比較して様々なグリーンインデックスのパフォーマンスを評価することが不可欠です.
研究 の 目的:
- MSCIのグリーン・エクイティ・インデックス (気候変動,パリ・アラインド・ベンチマーク,社会的に責任ある投資,SRIフィルター PAB) の環境パフォーマンスを,標準的なインデックスと比較して分析する.
- グリーン・インデックス・プロバイダーが 脱炭素化のための資本配分を容易にするという主張を検証する.
- 緑の基準がCO2排出量とESG評価に与える影響を評価する.
主な方法:
- 2015年から2022年にかけての20のMSCI株価指数 (5267の構成要素,50カ国) の分析
- 緑色インデックスと標準MSCIインデックスを比較するインデックスレベルの回帰分析
- 耐久性チェックのために複数の排出量データソース (Refinitiv,Bloomberg,CDP) を利用した.
主要な成果:
- MSCIのグリーンインデックスは,調査対象のすべてのタイプにおいて,統計的に有意なCO2排出量削減を示した.
- 気候変動,SRI,SRI PABの指標では環境/ESGの評価が改善されました.
- 緑のインデックスへの投資は,標準的なインデックスと比較して,投資した1000米ドルあたりの CO2 排出量を大幅に削減しました.
結論:
- グリーン・エクイティ・インデックスは,特にパリ協定に準拠したものは,環境上の優れたパフォーマンスを示しています.
- 緑のインデックスはベンチマーク規制に組み込まれ,資本優遇が認められる.
- 透明性の向上,ESG指標の標準化,格付け基準はグリーン投資の推進に不可欠です.
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