Showing 1 - 10 of 16
data from the Heston (1993) stochastic volatility model. From these simulated data we create daily returns, which are in …
Persistent link: https://www.econbiz.de/10005328970
Techniques for simulated maximum likelihood (SML) estimation, filtering, and assessing the fit of stochastic volatility … single-factor models adequately capture the dynamics of volatility; the problem is to get the shape of the returns … distribution right. Although including a second volatility factor improves the fit over the basic single-factor models, a new …
Persistent link: https://www.econbiz.de/10005342197
volatility, high persistence and smoothness. With the quasi-ML approach proposed in our study, we showed that volatility is far …
Persistent link: https://www.econbiz.de/10005129787
The properties and applications of the normal log-normal (NLN) mixture are considered. The moment of the NLN mixture is shown to be finite for any positive order. The expectations of exponential functions of a NLN mixture variable are also investigated. The kurtosis and skewness of the NLN...
Persistent link: https://www.econbiz.de/10005063629
stochastic volatility, and (iii) the specification of the volatility process itself. We then consider a variety of model … movement and whether stochastic volatility comes from jump or diffusion. We find that, to capture the behavior of the S&P 500 …
Persistent link: https://www.econbiz.de/10005699646
empirical performance of this algorithm is considered within the context of the stochastic volatility model. It is found that … the proposed algorithm outperforms a number of accepted procedures in terms of volatility forecasti …
Persistent link: https://www.econbiz.de/10005702536
significant in volatility as opposed to expected returns. This paper seeks an explanation for this empirical finding by … volatility model, in which the conditional daily volatility is measured in calendar time from open-to-close of the market, and … over weekends and especially holidays is a predictor of subsequent daily volatility. The SV parameters are estimated by …
Persistent link: https://www.econbiz.de/10005702592
The stochastic volatility (SV) models had not been popular as the ARCH (autoregressive conditional heteroskedasticity …) approximates the marginal likelihood of the observable process by simulating the latent volatility conditional on the available … information. Shephard and Pitt (1997) gave an idea of evaluating likelihood by exploiting sampled volatility. Durbin and Koopman …
Persistent link: https://www.econbiz.de/10005702767
We propose a new model for the variance between multiple time series, the Regime Switching Dynamic Correlation. We decompose the covariances into correlations and standard deviations and the correlation matrix follow a regime switching model; it is constant within a regime but different across...
Persistent link: https://www.econbiz.de/10005342253
This paper proposes a regression model for analysis of panel count data with the presence of excess zeros relative to a negative binomial distribution, in which the frequency distribution of counts changes according to an underlying two-state Markov chain. Features of the proposed model and...
Persistent link: https://www.econbiz.de/10005342331