Estimating Contagion Mechanism in Global Equity Market with Time-Zone Effect

• Tác giả: Muzi Chen, Difang Huang, Boyao Wu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 003.8 Systems distinguished in relation to time
• Thông tin xuất bản: 2024
• Bộ sưu tập: Metadata
• ID: 202228

Tóm tắt

This paper proposes a time-zone vector autoregression (VAR) model to investigate comovements in the global financial market. Analyzing daily data from 36 national equity markets, we explore the subprime and European debt crises using static analysis and the COVID-19 crisis through a rolling window method. Our study of comovements using VAR coefficients reveals a resonance effect in the global system. Findings on densities and assortativities suggest the existence of the transmission mechanism in all periods and abnormal structural changes during the crises. Strength analysis uncovers the information transmission mechanism across continents over normal and turmoil periods and emphasizes specific stock markets' unique roles. We examine dynamic continent strengths to demonstrate the contagion mechanism in the global equity market over an extended period. Incorporating the time-zone effect significantly enhances the VAR model's interpretability. Signed networks provide more information on global equity markets and better identifies critical contagion patterns than unsigned networks.