Help with suspicious estimation results

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Help with suspicious estimation results

Postby jmadeira » Sat Feb 02, 2008 2:33 pm

Hi,

When I estimate my model I always get results that are very close to the prior (for most parameters) and with very low standard deviation.
However if I change the prior significantly, I usually obtain again estimates close to the prior and also with low standard errors.

I also obtain very low acceptation rates (close to zero), unless I use a very low jscale (example 0.002). The intervals generated by the MH algorithm are incredibly small.

I find these results suspicious. Does anyone have sugestions on what should I do and why this is happening?

I have in attachment the mode file, the data (some variables are HP filtered), the output results and a pdf file that explains the model

Best,
Joao
Attachments
JOAODYNARE.zip
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jmadeira
 
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Postby p.gelain » Thu Jun 19, 2008 7:48 am

Hi jmadeira

I think the problem is with your data. I looked at them and they are very volatile. Moreover, almost all the series look like white noise processes. Did you filter them? If yes, maybe you should re-think about the filtering procedure. In the end, the series for "i" and "pi" are quite awful and the series for "m1" display a clear outlier around observation 175. If possible try to remove it, and in general try to have better data. I hope these suggestions will solve your problem.

Best regards.
Paolo
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Re: Help with suspicious estimation results

Postby fabiac » Wed Feb 06, 2013 5:36 pm

Dear jmadeira,

I see your post is old, but I'm facing a similar problem. Could you please tell me how you got around this? Thanks
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