Dynamic spillover effects and interconnectedness of DeFi assets, commodities, and Islamic stock markets during crises
研究了2019年12月至2023年3月期间三种DeFi资产、六种大宗商品和三个伊斯兰股票市场的收益与波动溢出效应，发现危机期间溢出效应增强，大宗商品在俄乌战争期间成为主要风险传递者，而疫情期间牲畜指数成为主要风险接收者。
Decentralized Finance (DeFi) assets, commodities, and Islamic stock market cointegration are affected by technological innovations, market dynamics, investor behavior, and crises. This study investigates the dynamics of returns and volatility for three DeFi assets, six commodities, and three Islamic stock markets from December 2019, to March, 2023, and identifies higher spillover effects during crises. Links among the Cross-DeFi, commodity, and Islamic markets significantly influence returns and volatility during crises. Notably, the commodities index emerged as a pivotal and substantial transmitter of risk during the Russian-Ukraine war crisis, with Emerging Markets (EM) being a key recipient. However, during the COVID-19 pandemic, livestock indices assume the role of prominent risk-return spillover receivers. The findings indicate robust returns and volatility interconnected between DeFi assets and Islamic markets with a moderate level of connectivity among commodity groups. WDI, ACWI, and EM explained 75 % of the variance observed during crisis episodes. This study formulates strategic portfolio management within and between connectedness among return volatilities by highlighting the stability of DeFi assets, the diversification potential in commodities, and a balanced option in Islamic markets. Our study provides a deep and insightful understanding of the stakeholders across markets during crises. • Notable spillovers in DeFi, commodities, and Islamic markets during crises. • Commodities drove risk during the Russian-Ukraine war, affecting Emerging Markets. • DeFi stability, commodity diversification, and Islamic market balance guide crisis management.