Showing 1 - 10 of 41
generally, to observation-driven models, which include well-known models for conditional volatility. To overcome the problem of … Monte Carlo study and an empirical study concerning the measurement of conditional volatility from financial returns data. …
Persistent link: https://www.econbiz.de/10011794421
Persistent link: https://www.econbiz.de/10003913191
We revisit Wintenberger (2013) on the continuous invertibility of the EGARCH(1,1) model. We note that the definition of continuous invertibility adopted in Wintenberger (2013) may not always be sufficient to deliver strong consistency of the QMLE. We also take the opportunity to provide other...
Persistent link: https://www.econbiz.de/10011401308
conditional variance is modelled by a stochastic volatility process. We develop a Monte Carlo maximum likelihood method to obtain … variance, in the order of integration, in the short memory characteristics and in the volatility of volatility. …
Persistent link: https://www.econbiz.de/10011373822
factor. Second, we specify the overall volatility as a generalized autoregressive conditional heteroscedasticity (GARCH …
Persistent link: https://www.econbiz.de/10011373825
accounts for time variation in macroeconomic volatility, known as the great moderation. In particular, we consider an … volatility processes and mixture distributions for the irregular components and the common cycle disturbances enable us to … that time-varying volatility is only present in the a selection of idiosyncratic components while the coefficients driving …
Persistent link: https://www.econbiz.de/10011376640
This paper considers spot variance path estimation from datasets of intraday high frequency asset prices in the presence of diurnal variance patterns, jumps, leverage effects and microstructure noise. We rely on parametric and nonparametric methods. The estimated spot variance path can be used...
Persistent link: https://www.econbiz.de/10011379469
We propose a new class of observation-driven time-varying parameter models for dynamic volatilities and correlations to handle time series from heavy-tailed distributions. The model adopts generalized autoregressive score dynamics to obtain a time-varying covariance matrix of the multivariate...
Persistent link: https://www.econbiz.de/10011380135
In this paper we present an exact maximum likelihood treatment forthe estimation of a Stochastic Volatility in Mean …(SVM) model based on Monte Carlo simulation methods. The SVM modelincorporates the unobserved volatility as anexplanatory variable … Stochastic Volatility (SV)model. However, efficient Monte Carlo simulationmethods for SV models have been developed to overcome …
Persistent link: https://www.econbiz.de/10011303314
implied by option prices. We develop anSV model with implied volatility as an exogeneous var able in the varianceequation …In this paper we compare the predictive abilility of Stochastic Volatility (SV)models to that of volatility forecasts … stochastic shocks incorporated in the SVXmodels. The out-of-sample volatility forecasts are evaluated against dailysquared …
Persistent link: https://www.econbiz.de/10011304384