Jump Spillover in International Equity Markets |
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Authors: | Asgharian, Hossein Bengtsson, Christoffer |
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Abstract: | In this article we study jump spillover effects between a numberof country equity indexes. In order to identify the latent historicaljumps of each index, we use a Bayesian approach to estimatea jump-diffusion model on each index. We look at the simultaneousjump intensities of pairs of countries and the probabilitiesthat jumps in large countries cause jumps or unusually largereturns in other countries. In all cases, we find significantevidence of jump spillover. In addition, we find that jump spilloverseems to be particularly large between countries that belongto the same regions and have similar industry structures, whereas,interestingly, the sample correlations between the countrieshave difficulties in capturing the jump spillover effects. |
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Keywords: | event risk jump-diffusion model Markov chain Monte Carlo spillover stochastic volatility systemic risk |
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