Showing 371 - 380 of 506
This paper identifies the Canadian-US equilibrium exchange rate based on a simple structural model of the real exchange rate, in which monetary policy follows a Taylor rule interest rate reaction function. The equilibrium exchange rate is explained by relative output and inflation as observable...
Persistent link: https://www.econbiz.de/10008493659
A key ingredient of many particle filters is the use of the sampling importance resampling algorithm (SIR), which transforms a sample of weighted draws from a prior distribution into equally weighted draws from a posterior distribution.  We give a novel analysis of the SIR algorithm and analyse...
Persistent link: https://www.econbiz.de/10008497742
This chapter proposes an up-to-date review of estimation strategies available for the Bayesian inference of GARCH-type models. The emphasis is put on a novel efficient procedure named AdMitIS. The methodology automatically constructs a mixture of Student-t distributions as an approximation to...
Persistent link: https://www.econbiz.de/10008498470
This paper proposes a new approach to estimating equilibrium exchange rates for small open economies. We set up a simple structural model of output, the rate of in ation and the real exchange rate. These observed variables are explained by unobserved equilibrium rates as well as unobserved...
Persistent link: https://www.econbiz.de/10008471774
In this paper the Laplace approximation is used to perform classical and Bayesian analyses of univariate and multivariate stochastic volatility (SV) models. We show that implementation of the Laplace approximation is greatly simplified by the use of a numerical technique known as automatic...
Persistent link: https://www.econbiz.de/10008521815
There are various importance sampling schemes to estimate rare event probabilities in Markovian systems such as Markovian reliability models and Jackson networks. In this work, we present a general state dependent importance sampling method which partitions the state space and applies the...
Persistent link: https://www.econbiz.de/10008531427
This short note presents the R package AdMit which provides flexible functions to approximate a certain target distribution and it provides an efficient sample of random draws from it, given only a kernel of the target density function. The estimation procedure is fully automatic and thus avoids...
Persistent link: https://www.econbiz.de/10004972203
This paper develops the important distinction between tilted and simple importance sampling as methods for simulating likelihood functions for use in simulated maximum likelihood. It is shown that tilted importance sampling removes a lower bound to simulation error for given importance sample...
Persistent link: https://www.econbiz.de/10004980814
The evaluation of the likelihood function of the stochastic conditional duration model requires to compute an integral that has the dimension of the sample size. We apply the efficient importance sampling method for computing this integral. We compare EIS-based ML estimation with QML estimation...
Persistent link: https://www.econbiz.de/10004984871
Recent models for credit risk management make use of Hidden Markov Models (HMMs). The HMMs are used to forecast quantiles of corporate default rates. Little research has been done on the quality of such forecasts if the underlying HMM is potentially mis-specified. In this paper, we focus on...
Persistent link: https://www.econbiz.de/10005136969