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We consider structural vector autoregressions identified through stochastic volatility. Our focus is on whether a particular structural shock is identified by heteroskedasticity without the need to impose any sign or exclusion restrictions. Three contributions emerge from our exercise: (i) a set...
Persistent link: https://www.econbiz.de/10014528602
The predictive likelihood is of particular relevance in a Bayesian setting when the purpose is to rank models in a forecast comparison exercise. This paper discusses how the predictive likelihood can be estimated for any subset of the observable variables in linear Gaussian state-space models...
Persistent link: https://www.econbiz.de/10010412361
We develop importance sampling methods for computing two popular Bayesian model comparison criteria, namely, the marginal likelihood and deviance information criterion (DIC) for TVP-VARs with stochastic volatility. The proposed estimators are based on the integrated likelihood, which are...
Persistent link: https://www.econbiz.de/10013017876
If multivariate dynamic models are to be used to guide decision-making, it is important that it be possible to provide probability assessments of their results. Bayesian VAR models in the existing literature have not commonly (in fact, not at all as far as we know) been presented with error...
Persistent link: https://www.econbiz.de/10014048602
In this paper, we assess whether key relations between US interest rates have been stable over time. This is done by estimating trivariate hybrid time-varying parameter Bayesian VAR models with stochastic volatility for the three-month Treasury bill rate, the slope of the Treasury yield curve...
Persistent link: https://www.econbiz.de/10014490330
allow the different models' error distributions to have heavier-than-Gaussian tails and skewness. Our results indicate that … accounting for heavy tails yields improvements over a Gaussian specification in some cases, whereas skewness appears less …
Persistent link: https://www.econbiz.de/10012799537
This paper investigates how the ordering of variables affects properties of the time-varying covariance matrix in the Cholesky multivariate stochastic volatility model.It establishes that systematically different dynamic restrictions are imposed whenthe ratio of volatilities is time-varying....
Persistent link: https://www.econbiz.de/10012250452
This paper investigates how the ordering of variables affects properties of the time-varying covariance matrix in the Cholesky multivariate stochastic volatility model. It establishes that systematically different dynamic restrictions are imposed when the ratio of volatilities is time-varying....
Persistent link: https://www.econbiz.de/10012424283
We propose a new algorithm which allows easy estimation of Vector Autoregressions (VARs) featuring asymmetric priors …
Persistent link: https://www.econbiz.de/10011389735
In this paper we extend the Bayesian Proxy VAR to incorporate time variation in the parameters. A Gibbs sampling algorithm is provided to approximate the posterior distributions of the model's parameters. Using the proposed algorithm, we estimate the time-varying effects of taxation shocks in...
Persistent link: https://www.econbiz.de/10011933414