The liberalization of capital flows has facilitated high integration between international financial markets, increasing interdependence among the developed economies in the East Asian region. The investigation into this interdependence among financial markets has been a significant focus throughout literature, where understanding the behaviour of international financial markets’ inter dependencies is crucial for making asset allocation and risk management decisions. Assessing the changing interdependencies is also critical for determining the nature of financial crises.
For example, the experience of recent financial crises suggests that the interdependence among the financial markets during tranquil periods is different from that of crisis periods, where often, during financial crises, we observe that the interdependence tends to break down. Consequently, we can observe a strong increase in the co-movements (correlations) of the returns between markets. It is argued by some that a structural break in the correlations demonstrates that the international propagation mechanisms of financial shocks are discontinuous (Monica Billio and Loriana Pelizzon, 2003; Giancarlo Corsetti, Luca Dedola, and Sylvain Leduc, 2005; and Toni Gravelle, Maral Kichian, and James Morley, 2006). Indeed, this break is owing to financial panics, or the herding or switches of expectations across multiple equilibria (equilibrium with speculative attacks vs. equilibrium without speculative attacks; Paul Robert Masson, 1999).