Abstract Details
Activity Number:
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686
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Type:
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Contributed
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Date/Time:
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Thursday, August 13, 2015 : 10:30 AM to 12:20 PM
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Sponsor:
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Section on Bayesian Statistical Science
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Abstract #315747
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Title:
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Inference on Self-Exciting Jumps in Prices and Volatility Using High-Frequency Measures
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Author(s):
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Worapree Maneesoonthorn*
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Companies:
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The University of Melbourne
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Keywords:
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Bayesian ;
Nonlinear state space model ;
Stochastic volatility ;
Hawkes process ;
Global financial crisis ;
Dynamic jumps
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Abstract:
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Dynamic jumps in the price and volatility of an asset are modelled using a joint Hawkes process in conjunction with a bivariate jump diffusion. A state space representation is used to link observed returns, plus nonparametric measures of integrated volatility and price jumps, to the specified model components; with Bayesian inference conducted using a Markov chain Monte Carlo algorithm. The calculation of marginal likelihoods for the proposed and related models is discussed. An extensive empirical investigation is undertaken using the S&P500 market index, with substantial support for dynamic jump intensities - including in terms of predictive accuracy - documented.
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Authors who are presenting talks have a * after their name.
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