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Volatility spillover shifts in global financial markets

Ahmed BenSaïda, Houda Litimi and Oussama Abdallah

Economic Modelling, 2018, vol. 73, issue C, 343-353

Abstract: This paper analyzes the volatility spillovers across global financial markets using a generalized variance decomposition, and by incorporating a fast-tractable Markov regime-switching framework into the vector autoregressive (VAR) model. The new approach outperforms the classical single-regime framework, by detecting different dynamics of spillovers during periods of crisis and periods of tranquility. Moreover, the proposed estimation method has the advantage over existing procedures to converge remarkably fast when applied to a large number of variables. Empirical investigation on volatility indices of eight developed financial stock markets shows that the total and directional spillovers are more intense during turbulent periods, with frequent swings between net risk transmission and net risk reception. Conversely, during periods of tranquility, volatility spillovers are relatively moderate.

Keywords: Financial contagion; Markov switching; Risk transmission; Volatility spillovers (search for similar items in EconPapers)
JEL-codes: G11 G17 C32 C34 C58 (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1016/j.econmod.2018.04.011

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