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Re: st: Dyadic fixed effects and areg, absorb


From   emanuele mazzini <madsoenistata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Dyadic fixed effects and areg, absorb
Date   Fri, 15 Apr 2011 18:43:00 +0200

I am not sure I can implement it as my dataset is unbalanced, making
everything kind of difficult. But I'll take a look at it!
Thank you very much for your suggestion!

Regards,
Emanuele.

2011/4/15 Fabio Zona <fabio.zona@unibocconi.it>:
> Emanuele,
> did you try the Quadratic assignment procedure by Simpson? I think it deals with both dyads and time effects.
> You can find the file on the internet: type quadratic assignment procedure on google
>
>
>
>
> ----- Messaggio originale -----
> Da: "emanuele mazzini" <madsoenistata@gmail.com>
> A: statalist@hsphsun2.harvard.edu
> Inviato: Venerdì, 15 aprile 2011 16:31:32 GMT +01:00 Amsterdam/Berlino/Berna/Roma/Stoccolma/Vienna
> Oggetto: st: Dyadic fixed effects and areg, absorb
>
> Dear all Stata users,
> I am trying to work out a regression with an unbalanced bilateral
> panel dataset in which I need to include both dyadic fixed effects and
> year fixed effects. Since my dataset is very huge (it includes more
> than 600,000 observations) and I cannot generate a dummy for the
> variable dyads (which is the unique dyads identifier), I thought that
> I can accomplish this by using the following command:
>
> areg...., absorb(dyads)
>
> by including only the dummies that refer to the years to take into
> account the year fixed effects, while absorb(dyads) is supposed to
> take into account the dyadic fixed effects.
>
> I am not looking really for an help, but more for an advice: what do
> you think about this solution to my problem (i.e. to the impossibility
> to generate more than 15,000 dummies)? Do you think this may work?
>
> Thanks to all of you in advance for your time and consideration,
>
> Regards,
> Emanuele.
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