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• W19839814 abstract "This paper estimates models of high frequency index futures returns using `around the clock' 5-minute returns that incorporate the following key features: multiple persistent stochastic volatility factors, jumps in prices and volatilities, seasonal components capturing time of the day patterns, correlations between return and volatility shocks, and announcement effects. We develop an integrated MCMC approach to estimate interday and intraday parameters and states using high-frequency data without resorting to various aggregation measures like realized volatility. We provide a case study using financial crisis data from 2007 to 2009, and use particle filters to construct likelihood functions for model comparison and out-of-sample forecasting from 2009 to 2012. We show that our approach improves realized volatility forecasts by up to 50% over existing benchmarks." @default.
• W19839814 created "2016-06-24" @default.
• W19839814 creator A5041147310 @default.
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• W19839814 date "2012-11-13" @default.
• W19839814 modified "2023-09-27" @default.
• W19839814 title "Bayesian modeling and forecasting of 24-hour high-frequency volatility: A case study of the financial crisis" @default.
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• W19839814 hasPublicationYear "2012" @default.
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