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Re: st: MA(1) process


From   Robert A Yaffee <bob.yaffee@nyu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: MA(1) process
Date   Fri, 09 Jul 2010 11:51:04 -0400

Ari,
   Parsimony will dictate the proper one to use.
      Robert

Robert A. Yaffee, Ph.D.
Research Professor
Silver School of Social Work
New York University

Biosketch: http://homepages.nyu.edu/~ray1/Biosketch2009.pdf

CV:  http://homepages.nyu.edu/~ray1/vita.pdf

----- Original Message -----
From: Ari Dothan <ari.dothan@gmail.com>
Date: Friday, July 9, 2010 11:32 am
Subject: st: MA(1) process
To: statalist@hsphsun2.harvard.edu


> Hi Statalisters,
>  I am using a gmm procedure for dynamic panels which makes it possible
>  to fit a model with an MA(1) error structure (moving average (1st
>  order). Most other procedures, such as fixed effects, use the AR(1)
>  error structure.
>  Could anyone explain me in layman’s terms what is the difference
>  between the MA(1) and the AR(1) error structures? Why, and when,
>  should one be used rather than the other?
>  Thanks
>  --
>  Ari Dothan
>  
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