Journal of Economics Business Industry
Vol. 3 No. 2 (2025): November

Geopolitical Risk and Renewable Energy Equity Markets through Energy Commodity Price Connectedness

Kerem Öztürk (Yeditepe University)
Emirhan Yıldız (Yeditepe University)
Sena Aydın (Yeditepe University)
Ayşe Nur Çelik (Yeditepe University)
Elif Şahin (Yeditepe University)
Mert Demir (Yeditepe University)



Article Info

Publish Date
28 Nov 2025

Abstract

This study examines whether geopolitical risk (GPR) transmits to renewable energy equity markets through an energy commodity price mediation channel, 717 daily observations from February 24, 2022 to December 31, 2024. Employing the Quantile Time-Varying Parameter Vector Autoregression (QTVP-VAR) connectedness framework, this study incorporates European natural gas prices (TTF), Brent crude oil, and three renewable energy indices — ECO, ERIX, and SPCE — to examine tail-dependent risk transmission across bearish (τ = 0.05), median (τ = 0.50), and bullish (τ = 0.95) market states. Results reveal that total connectedness escalates from 17.1% at the median to 52.3% at the upper tail, confirming pronounced asymmetric risk transmission absent in conventional mean-based frameworks. TTF emerges as the dominant mediating channel, while direct GPR-to-equity transmission remains secondary. SPCE exhibits the highest tail sensitivity among renewable indices. Findings offer critical implications for portfolio risk management, regulatory capital requirements, and European energy policy design.

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Journal Info

Abbrev

Jebin

Publisher

Subject

Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

Description

Journal of Economics Business Industry is a journal through a peer-review process.  Journal of Economics Business Industry for academics and researchers to publish their articles which is an original text that has not been published in another journal. The focus and scope are in the fields of ...