Strategic metals, rare earths, green transition, and tanker markets: Dynamic connectedness and strategic decision-making
戦略金属、レアアース、グリーン転換、タンカー市場:動的な連関性と戦略的意思決定 (AI 翻訳)
Ersin Firat Akgul, Hercules Haralambides, Emrah AKDAMAR
🤖 gxceed AI 要約
日本語
本研究は、2015年から2025年の高頻度データを用いて、タンカー海運市場と戦略金属(リチウム、ニッケル、コバルト)およびクリーンエネルギー指数間の動的な連関性をGR2DCフレームワークで分析。2020年以降、BCTIはクリーンエネルギー・金属市場との同期が強まり、BDTIは地政学的危機時に反応的なスピルオーバーを示す。海事の脱炭素化戦略と資源安全保障の統合的アプローチへの政策示唆を提供。
English
This study examines the dynamic connectedness between tanker shipping indices (BDTI, BCTI) and strategic metals (lithium, nickel, cobalt) and clean energy ETFs from 2015-2025 using the GR2DC framework. Results show that since 2020, BCTI has aligned more with clean energy and metal markets, while BDTI exhibits lagged spillovers during geopolitical shocks. The findings imply tanker freight indices act as financial signals of structural change, offering policy insights for integrated maritime decarbonization and resource security.
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
本論文の知見は、資源輸入大国である日本にとって、海上輸送と戦略金属市場の連関を理解し、脱炭素化と資源安全保障を統合した政策設計に資する。特に、タンカー運賃指標がグリーン投資の金融シグナルとして機能する点は、日本の海事産業とエネルギー政策担当者にとって重要。
In the global GX context
This paper contributes to global GX discourse by linking maritime transportation markets to strategic metal and clean energy financial indices, highlighting the role of shipping as a transmission channel for systemic shocks. It provides empirical evidence relevant for transition finance and supply chain resilience, aligning with TCFD/ISSB frameworks on understanding climate-related financial risks across sectors.
👥 読者別の含意
🔬研究者:Researchers can use the GR2DC framework to further explore cross-market spillovers in the energy transition, particularly the role of maritime transport as a financial signal.
🏢実務担当者:Corporate sustainability teams in shipping, logistics, and energy supply chains can leverage the findings to better assess volatility linkages and inform risk management strategies for green transition.
🏛政策担当者:Policymakers in resource security and maritime decarbonization should note the integrated nature of tanker markets and strategic metal supply, supporting a coordinated policy approach.
📄 Abstract(原文)
The global energy transition is reshaping not only energy production systems but also the financial and logistical structures that support them. Maritime energy transportation markets and strategic metal markets represent two critical components of this transformation, yet their joint dynamics remain insufficiently explored. This study examines how energy transportation markets, particularly tanker shipping, interact with strategic metals and clean energy financial indices, and how these relationships evolve during periods of structural change and systemic shocks. Using high-frequency daily data from 2015 to 2025, the study applies the Generalized R 2 Connectedness (GR 2 DC) framework to analyze time-varying information flows among the Baltic Dirty Tanker Index (BDTI), the Baltic Clean Tanker Index (BCTI), selected strategic metals, namely lithium, nickel, cobalt, and clean energy exchange-traded funds. The findings show that since 2020 the BCTI has become increasingly synchronized with clean energy and strategic metal markets, reflecting a closer alignment with green investment dynamics. In contrast, the BDTI displays more reactive and lagged spillovers, particularly during periods of geopolitical stress such as the Russia–Ukraine conflict. Overall, tanker freight indices predominantly act as net receivers of volatility rather than persistent transmitters, though the BCTI exhibits episodic transmitter characteristics during crisis periods. The findings indicate that tanker freight indices function as financial signals of structural change in the energy system, rather than merely reflecting physical transport conditions. From a policy perspective, the findings suggest that maritime decarbonization strategies should be evaluated alongside considerations of resource security and supply-chain resilience, supporting a more integrated approach to energy and transport policy design. • Analyzes dynamic connectedness between tanker markets and strategic metals. • Uses the Generalized R 2 Connectedness (GR 2 DC) framework with high-frequency data. • Reveals asymmetric and lag-sensitive spillovers under crisis conditions. • Identifies BCTI's alignment with clean energy and BDTI's exposure to metal shocks. • Offers policy insights on resource security and maritime decarbonization.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.retrec.2026.101783first seen 2026-05-17 07:25:06 · last seen 2026-05-20 05:16:30
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