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In this paper, we review the most common specifications of discrete-time stochastic volatility (SV) models and … indices and foreign exchange rates. -- Stochastic volatility ; Markov chain Monte Carlo ; Metropolis-Hastings algorithm Jump …
Persistent link: https://www.econbiz.de/10003770817
variance parameters, and for price inflation series we find strong evidence of changes in persistence. We find little evidence …
Persistent link: https://www.econbiz.de/10012908055
relative to a standard no-predictability benchmark, the optimal combination of predictors, stochastic volatility, and time …
Persistent link: https://www.econbiz.de/10012910552
Investors have increasing interests in sophisticated yet transparent analytic tools to handle model uncertainty, tail risk and market dynamics. This paper demonstrates how macroeconomic factor models, based on Bayesian model averaging (BMA), can help address the challenges in some specific...
Persistent link: https://www.econbiz.de/10013073771
volatility models. Overall, we find that our combination scheme produces markedly more accurate predictions than the existing …
Persistent link: https://www.econbiz.de/10013032027
Persistent link: https://www.econbiz.de/10015177992
We provide a formulation of stochastic volatility (SV) based on Gaussian process regression (GPR). Forecasting … volatility out-of-sample, both simulation and empirical analyses show that our GPR-based stochastic volatility (GPSV) model …
Persistent link: https://www.econbiz.de/10014186681
the volatility and persistence of inflation and interest rates occurring over a similar time frame as the volatility …Using Bayesian tests for a structural break at an unknown break date, we search for a volatility reduction within the … real GDP has been less volatile since the early 1980's, and that this volatility reduction is concentrated in the cyclical …
Persistent link: https://www.econbiz.de/10014126249
-memory stochastic volatility model. We develop a new Bayesian estimator based on the Markov chain Monte Carlo sampler and the wavelet … joint posterior distribution. Unlike short-memory stochastic volatility models, long-memory stochastic volatility models do … quickly and efficiently from the near independent multivariate distribution of the long-memory volatility's wavelet …
Persistent link: https://www.econbiz.de/10014134764
parametric approach utilizing a Stochastic-Volatility-Jump-Diffusion (SVJD) model, estimated with MCMC and extended with Particle … method may be biased in the case when large outlier jumps occur in the time series as well as when the stochastic volatility …
Persistent link: https://www.econbiz.de/10012964932