STEMM Institute Press
Science, Technology, Engineering, Management and Medicine
Dynamic Spillovers between Green Finance and Energy Markets and Their Association with Financial Market Uncertainty: Evidence from China
DOI: https://doi.org/10.62517/jbm.202609412
Author(s)
Jingyao Sa
Affiliation(s)
Zhaotong University, Zhaotong, Yunnan, China
Abstract
This study examines how return spillovers between China's green finance and energy markets vary across market states and investment horizons, and how those spillovers co-move with financial market uncertainty. The analysis uses 1,539 matched daily observations from June 2017 to January 2025 for carbon allowances, green equities, green bonds, crude oil, liquefied natural gas, coking coal futures, and a new energy index. A quantile vector autoregression model is combined with generalized forecast error variance decompositions, the Diebold-Yilmaz connectedness framework, the Baruník-Křehlík frequency decomposition, and wavelet coherence. Changes in CSI 300 conditional volatility, estimated using a GARCH (1,1) model, serve as the financial market uncertainty proxy. At the median quantile, total connectedness is 21.63%; the corresponding lower- and upper-tail values are 69.06% and 69.15%. The largest share of spillovers occurs within one to five trading days. For this short horizon, connectedness reaches 16.82% at the median, 53.66% in the lower tail, and 55.53% in the upper tail. The respective longer-horizon values are 4.80%, 15.40%, and 13.62%. Green equities and new energy stocks are recurrent transmitters, while the coking coal market changes from a receiver under typical conditions to a transmitter in both tails. Green bonds become an important short-term transmitter in the upper tail. Wavelet evidence shows that the association between connectedness and financial uncertainty is episodic, quantile dependent, and concentrated at different frequencies around the COVID-19 pandemic and the Russia-Ukraine war. The results support state-contingent risk monitoring and horizon-specific portfolio management.
Keywords
Green Finance; Energy Markets; Financial Market Uncertainty; Quantile Vector Autoregression; Connectedness; Wavelet Coherence
References
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