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Emerging economies and especially the BRICS countries have strong economic ties with the euro area. In addition, the financial crisis in the euro area may have effects on other markets or areas, especially those of the main emerging markets. Credit default swap (CDS) spreads are relevant...
Persistent link: https://www.econbiz.de/10010708160
In Chib (1995), a method for approximating marginal densities in a Bayesian setting is proposed, with one proeminent application being the estimation of the number of components in a normal mixture. As pointed out in Neal (1999) and Fruhwirth-Schnatter (2004), the approximation often fails short...
Persistent link: https://www.econbiz.de/10010706383
In this paper, we show how a complete and exact Bayesian analysis of a parametric mixture model is possible in some cases when components of the mixture are taken from exponential families and when conjugate priors are used. This restricted set-up allows us to show the relevance of the Bayesian...
Persistent link: https://www.econbiz.de/10010706405
Published nearly seventy years ago, Jeffreys' Theory of Probability (1939) has had a unique impact on the Bayesian community and is now considered to be one of the main classics in Bayesian Statistics as well as the initiator of the objective Bayes school. In particular, its advances on the...
Persistent link: https://www.econbiz.de/10010706449
Importance sampling methods can be iterated like MCMC algorithms, while being more robust against dependence and starting values. The population Monte Carlo principle consists of iterated generations of importance samples, with importance functions depending on the previously generated...
Persistent link: https://www.econbiz.de/10010706614
Persistent link: https://www.econbiz.de/10010706646
In this paper we discuss consistency of the posterior distribution in cases where the Kullback-Leibler condition is not verified. This condition is stated as : for all $\epsilon 0$ the prior probability of sets in the form $\{f ; KL(f0 , f ) \leq \epsilon\}$ where KL(f0 , f ) denotes the...
Persistent link: https://www.econbiz.de/10010706650
Approximate Bayesian computation (ABC) have become a essential tool for the analysis of complex stochastic models. Earlier, Grelaud et al. (2009) advocated the use of ABC for Bayesian model choice in the specific case of Gibbs random fields, relying on a inter-model sufficiency property to show...
Persistent link: https://www.econbiz.de/10010706662
Persistent link: https://www.econbiz.de/10010706694
We derive rates of contraction of posterior distributions on non-parametric models resulting from sieve priors. The aim of the study was to provide general conditions to get posterior rates when the parameter space has a general structure, and rate adaptation when the parameter is, for example,...
Persistent link: https://www.econbiz.de/10010706809