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Re: st: Zero-inflated negative binomial panel model


From   "JVerkuilen (Gmail)" <jvverkuilen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Zero-inflated negative binomial panel model
Date   Sat, 2 Mar 2013 00:05:36 -0500

On Fri, Mar 1, 2013 at 9:33 AM, Maarten Buis <maartenlbuis@gmail.com> wrote:
>
> A zero inflated negative binomial tries to extract quite a lot of
> information from quite subtle features in the data and the same is
> true for panel models. I would not be surprised that combining the two
> would lead to a model that would just be too fragile to be of
> practical use.

Yeah, that was my thought. I suspect you could get it to work if you
had good a priori information predicting zero inflation, but without
that it would be very difficult given how much zero inflation and
negative binomial mixing are likely to trade off.


-- 
JVVerkuilen, PhD
jvverkuilen@gmail.com

"It is like a finger pointing away to the moon. Do not concentrate on
the finger or you will miss all that heavenly glory." --Bruce Lee,
Enter the Dragon (1973)
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