Re: [Gretl-devel] Presentation of model results
On Fri, 21 Nov 2008, Allin Cottrell wrote:
On Fri, 21 Nov 2008, Sven Schreiber wrote:
> Apart from the looks, I'm not sure why Akaike should be
> preferred over Hannan-Quinn in terms of econometrics. I'm sure
> AIC is good for some objectives, but AFAIK it is not consistent
> in the sense that it doesn't pick the true model even
> asymptotically, in contrast to Hannan-Quinn.
Come on, AIC ain't THAT bad. Only, the probability of AIC picking the
right model doesn't go to 1 asymptotically. From this ponit of view, BIC
and HQC are superior. However, AIC has the merit of having been the first
widely used criterion, and I would think it has to stay in for
comparison/replication purposes. By the same logic, one would have to
ditch the Durbin-Watson statistic, Cochrane-Orcutt, the ADF test... and
the list could continue.
Here's another go at this topic. I've put up
http://ricardo.ecn.wfu.edu/~cottrell/dougherty/table.html
showing a few variants for folks to consider.
[...]
I'll make a case for C, though I'm not totally committed to
this.
First, I don't think it's necessary to print the sample size in
this table, since we always show that in the header for model
output.
Ok. However, I'd rather have the sample size together with the other
statistics, rather than in the header. But I don't have overly strong
feelings on this.
Second, it's obviously a matter of opinion whether it's
"more logical" to have closely related items (e.g. the F-stat and
its p-value) on the same row (as in Jack's B) or next to each
other vertically (as in C). I find that my eye tends to group
things vertically given this sort of presentation, so I have a
slight preference for C in this regard.
I agree that to some extent it's a matter of personal taste. As for me, I
tend to "go by row" instead. If I was just interested in (say) the
F-statistic, I'd find it more immediate to look for its row. That also
makes copy-n-paste easier, if needed.
Riccardo (Jack) Lucchetti
Dipartimento di Economia
Università Politecnica delle Marche
r.lucchetti(a)univpm.it
http://www.econ.univpm.it/lucchetti