Biometrika Advance Access published online on August 5, 2007
Biometrika, doi:10.1093/biomet/asm048
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Copyright © 2007 Biometrika Trust
Article |
Simulation and inference for stochastic volatility models driven by Lévy processes
Department of Mathematics, Imperial College London, London, SW7 2AZ, U.K.
Department of Mathematics and Statistics, McGill University, H3A 2 KG, Montreal, Canada
m.gander{at}imperial.ac.uk
d.stephens{at}math.mcgill.ca
Received for publication 1 February 2005.
Revision received 1 December 2006.
| Abstract |
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We study Ornstein-Uhlenbeck stochastic processes driven by Lévy processes, and extend them to more general non-Ornstein-Uhlenbeck models. In particular, we investigate the means of making the correlation structure in the volatility process more flexible. For one model, we implement a method for introducing quasi long-memory into the volatility model. We demonstrate that the models can be fitted to real share price returns data.