Showing 151 - 160 of 2,084
We develop an easy-to-implement method for forecasting a stationary auto-regressive fractionally integrated moving average (ARFIMA) process subject to structural breaks with unknown break dates. We show that an ARFIMA process subject to a mean shift and a change in the long memory parameter can...
Persistent link: https://www.econbiz.de/10013077488
This chapter reviews econometric models for which statistical inference requires intensive numerical computations. A common feature of such models is that they incorporate unobserved (or latent) variables, in addition to observed ones. This often implies that the latent variables have to be...
Persistent link: https://www.econbiz.de/10014066095
Adaptive radial-based direction sampling (ARDS) algorithms are specified for Bayesian analysis of models with nonelliptical, possibly, multimodal target distributions. A key step is a radial-based transformation to directions and distances. After the transformations a Metropolis-Hastings method...
Persistent link: https://www.econbiz.de/10014066096
We consider the estimation of a large number of GARCH models, of the order of several hundreds. To achieve parsimony, we classify the series in a small number of groups. Within a cluster, the series share the same model and the same parameters. Each cluster contains therefore similar series. We...
Persistent link: https://www.econbiz.de/10014066097
This paper introduces a new framework for the dynamic modelling of univariate and multivariate point processes. The so-called latent factor intensity (LFI) model is based on the assumption that the intensity function consists of univariate or multivariate observation driven dynamic components...
Persistent link: https://www.econbiz.de/10014066098
We introduce a class of models for the analysis of durations, which we call stochastic conditional duration (SCD) models. These models are based on the assumption that the durations are generated by a dynamic stochastic latent variable. The model yields a wide range of shapes of hazard...
Persistent link: https://www.econbiz.de/10014066314
We provide a ranking of economics departments in Europe and we discuss the methods used to obtain it. The JEL CD-ROM serves as a database for a period covering 10 years. Journals are ranked using a combination of expert opinions and citation data to produce a scale from 1 to 10. The publication...
Persistent link: https://www.econbiz.de/10014066315
This paper shows how one can compute option prices from a Bayesian inference viewpoint, using a GARCH model for the dynamics of the volatility of the underlying asset. The proposed evaluation of an option is the predictive expectation of its payoff function. The predictive distribution of this...
Persistent link: https://www.econbiz.de/10014066094
We present an estimation and forecasting method, based on a differential evolution MCMC method, for inference in GARCH models subjected to an unknown number of structural breaks at unknown dates. We treat break dates as parameters and determine the number of breaks by computing the marginal...
Persistent link: https://www.econbiz.de/10012956780
Several models have been developed to capture the dynamics of the conditional correlations between time series of financial returns and several studies have shown that the market volatility is a major determinant of the correlations. We extend some models to include explicitly the dependence of...
Persistent link: https://www.econbiz.de/10012956782