- 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 …

theory but rather base the decision of the lag structure on a robust Lagrange Multiplier test. In contrast to U.S. data we … 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 …

capturing both of the typical characteristics of the short-term interest rate: volatility persistence and the dependence of … volatility on the level of the interest rate. The model also allows for regime switches whose presence has been a third central …

models, such as discrete time series models, time-inhomogeneous diffusion models, stochastic volatility models, jump … ; Parameter estimation uncertainty ; Probability integral transform ; Quadratic form ; Short-term interest rate ; Transition …

maturities and moneyness dimension is neglected. In this paper we propose to estimate the implied volatility surface at each … point in time nonparametrically and to analyze the implied volatility surface slice by slice with a common principal … study a p variate random vector of k groups, say the "volatility smile" at p different grid points of moneyness for k …