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The analysis of diffusion processes in financial models is crucially dependent on the form of the drift and diffusion coefficient functions. A methodology is proposed for estimating and testing coefficient functions for ergodic diffusions that are not directly observable. It is based on...
Persistent link: https://www.econbiz.de/10009613611
alternative for modelling financial data exhibiting skewness and fat tails. In this paper we explore the Bayesian estimation of …
Persistent link: https://www.econbiz.de/10009612011
We establish a relation between stochastic volatility models and the class of generalized hyperbolic distributions …
Persistent link: https://www.econbiz.de/10009577459
Stochastic Volatility (SV) models are widely used in financial applications. To decide whether standard parametric …
Persistent link: https://www.econbiz.de/10009578026
find that the volatility depends on either the interest rate level or information shocks but not on both. Finally, we … propose to describe the short term interest rate's dynamics by means of an AR(1) model with stochastic volatility. -- Term … Structure Models ; Stochastic Volatility ; ARCH …
Persistent link: https://www.econbiz.de/10009578570
, and the Deutschmark-US dollar. The estimation results for both models show: (i) that the unrestricted model outperforms …
Persistent link: https://www.econbiz.de/10009579181
- 1998, namely FX-rates measured against the US dollar (USD) and the Japanese yen (JPY). Ta account for volatility e1ustering … prices. Having identified subperiods of homogeneous volatility dynamics we concentrate on stylized facts to distinguish these … volatility regimes. The bottom level of estimated volatility turns out be considerably higher during the second part of the …
Persistent link: https://www.econbiz.de/10009616784
Multivariate Volatility Models belong to the class of nonlinear models for financial data. Here we want to focus on …
Persistent link: https://www.econbiz.de/10009615423
prices caused by stochastic volatility. -- option pricing ; autoregression ; heteroskedasticity ; GARCH ; leverage effect …
Persistent link: https://www.econbiz.de/10009580460
is the volatility coefficient which in turn obeys an autoregression type equation log v t = w + a S t- l + nt with an … problem of online estimation of current values of w = w(T) and a = a(T) from the observations SI , ... ,ST. We propose an … adaptive method of estimation which does not use any information about time homogeneity of the obscured process. We apply this …
Persistent link: https://www.econbiz.de/10009582392