Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/90899
Authors: 
Lütkepohl, Helmut
Staszewska-Bystrova, Anna
Winker, Peter
Year of Publication: 
2014
Series/Report no.: 
DIW Discussion Papers 1354
Abstract: 
In impulse response analysis estimation uncertainty is typically displayed by constructing bands around estimated impulse response functions. These bands may be based on frequentist or Bayesian methods. If they are based on the joint distribution in the Bayesian framework or the joint asymptotic distribution possibly constructed with bootstrap methods in the frequentist framework often individual confidence intervals or credibility sets are simply connected to obtain the bands. Such bands are known to be too narrow and have a joint confidence content lower than the desired one. If instead the joint distribution of the impulse response coefficients is taken into account and mapped into the band it is shown that such a band is typically rather conservative. It is argued that a smaller band can often be obtained by using the Bonferroni method. While these considerations are equally important for constructing forecast bands, we focus on the case of impulse responses in this study.
Subjects: 
Impulse responses
Bayesian error bands
frequentist confidence bands
Wald statistic
vector autoregressive process
JEL: 
C32
Document Type: 
Working Paper

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