Standard deviations of estimated parameters are strange

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Standard deviations of estimated parameters are strange

Postby earsmall » Tue Aug 04, 2015 5:08 am

I performed a DSGE estimation with 1000,000 posterior draws.
However, one strange thing is that posterior standard deviations of estimated parameters are exactly same as those of prior.

Q: Is there any way I can check simulated series which will be length of 500,000 (because I burned in 50%).
earsmall
 
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Re: Standard deviations of estimated parameters are strange

Postby jpfeifer » Tue Aug 04, 2015 5:32 am

If you are referring to the table column "pstdev" that actually is the prior standard deviation, not the posterior one. For the posterior we only report the 90% HPD interval.

If that is not the problem, check identification.
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
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Re: Standard deviations of estimated parameters are strange

Postby earsmall » Tue Aug 04, 2015 6:48 am

Thanks for your reply.

Then, is there any way I can compute posterior standard deviations on my own?
In other words, if simulated series are stored, we could calculate them.
earsmall
 
Posts: 40
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Re: Standard deviations of estimated parameters are strange

Postby jpfeifer » Wed Aug 05, 2015 6:43 am

Take the square root of
oo_.posterior_variance
------------
Johannes Pfeifer
University of Cologne
https://sites.google.com/site/pfeiferecon/
jpfeifer
 
Posts: 6940
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Location: Cologne, Germany


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