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The role of jumps in volatility spillovers in foreign exchange markets: meteor shower and heat waves revisited
This paper extends the previous literature on geographic (heat waves) and intertemporal (meteor showers) foreign exchange volatility transmission to characterize the role of jumps and cross-rate propagation. We employ heterogeneous autoregressive (HAR) models to capture the quasi-long-memory properties of volatility and the Shapley-Owen R2 measure to quantify the contributions of components. We conclude that meteor showers are more influential than heat waves, that jumps play a modest but significant role in volatility transmission and that significant, bidirectional cross-rate volatility ...
Macroeconomic News Announcements, Systemic Risk, Financial Market Volatility and Jumps
This paper studies financial market volatility and jump responses to macroeconomic news announcements. Based on two decades of high-frequency data, we finds that there are significantly more jumps on news days than on no-news days, with the bond market being more responsive than the equity market, and nonfarm payroll employment being the most influential news. Both the first moment of news surprises and the second moments of disagreement and uncertainty affect financial market responses, with their impact significance changing over different market and response types. Market responses to news ...