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Chinese Journal of Management Science ›› 2025, Vol. 33 ›› Issue (8): 37-49.doi: 10.16381/j.cnki.issn1003-207x.2023.0327

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Multidimensional Spillover of International Emerging Assets and Chinese Traditional Assets: Based on the Quantile VAR Network

Xiong Wang, Jingyao Li, Xiaohang Ren(), Zongrun Wang   

  1. School of Business,Central South University,Changsha 410083,China
  • Received:2023-03-02 Revised:2023-08-18 Online:2025-08-25 Published:2025-09-10
  • Contact: Xiaohang Ren E-mail:domrxh@outlook.com

Abstract:

Financial market risks in the context of economic globalization have taken on new characteristics of cross-regional spillovers and cross-contagion. An in-depth examination of multidimensional risk spillovers between international emerging assets (fintech, bitcoin and green bonds) and domestic traditional assets (stock market, crude oil, commodity and metal markets) under different market conditions is provided based on the GARCHSK model and the quantile VAR network framework. Firstly, the static results suggest that spillovers between assets are asymmetric, with spillovers generally higher at the extreme quartiles than at the middle quartile, and significant differences in left- and right-tail spillovers across dimensions. Secondly, rolling window analysis shows that asset price returns, volatility, skewness and kurtosis spillovers all exhibit significant time-varying characteristics, and that the pattern of such spillover relationships over time is more driven by external shocks. Finally, through network structure analysis, it is found heterogeneity in the structural characteristics, direction of contagion, intensity of action and risk centres of the targeted spillover network across financial assets at different moments and at different quantiles. Overall, the findings of this paper contribute to further understanding of the multidimensional spillover relationships and risk contagion paths of domestic and foreign financial assets, and have important implications for investors in constructing diversified asset portfolios and policymakers in strengthening macroprudential regulation.

Key words: financial assets, multidimensional spillover effect, GARCHSK model, QVAR model, nonlinear network

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