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in a Bayesian framework. This consists of a new adaptive importance sampling method for Quantile Estimation via Rapid …
Persistent link: https://www.econbiz.de/10011377096
Accurate prediction of risk measures such as Value at Risk (VaR) and Expected Shortfall (ES) requires precise estimation of the tail of the predictive distribution. Two novel concepts are introduced that offer a specific focus on this part of the predictive density: the censored posterior, a...
Persistent link: https://www.econbiz.de/10013064150
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simulate model parameters from the Partially Censored Posterior, and PCP-QERMit, an Importance Sampling method that is …
Persistent link: https://www.econbiz.de/10012057160
A class of adaptive sampling methods is introduced for efficient posterior and predictive simulation. The proposed … between target and mixture is minimized. We label this approach <I>Mixture of t by Importance Sampling and Expectation … Importance Sampling (IS) or the Metropolis-Hastings (MH) method. We also introduce three extensions of the basic MitISEM approach …
Persistent link: https://www.econbiz.de/10013108670
The use of GARCH models with stable Paretian innovations in financial modeling has been recently suggested in the literature. This class of processes is attractive because it allows for conditional skewness and leptokurtosis of financial returns without ruling out normality. This contribution...
Persistent link: https://www.econbiz.de/10009765347
Stochastic Volatility (SV), along with Mixed Data Sampling (MIDAS) regressions, which enable us to incorporate the impacts of …
Persistent link: https://www.econbiz.de/10014252427
Persistent link: https://www.econbiz.de/10009691174
proposed algorithm, which is based on tempered importance sampling, adapts the model-based density forecasts to target … distributions the researcher has access to. As an example, this paper shows how to implement the algorithm by conditioning the …
Persistent link: https://www.econbiz.de/10013463266