st: Sargan's difference test

From	Kai Kirchesch <kirchesch@gmx.de>
To	statalist@hsphsun2.harvard.edu
Subject	st: Sargan's difference test
Date	Wed, 13 Nov 2002 16:35:21 +0100

I am using the xtabond command for GMM estimation. However, the results only report the Sargan statistic.
Is there any possibility to perform the Sargan's difference test with Stata?
Thanks,
Kai

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Follow-Ups:
- Re: st: Sargan's difference test
  - From: "Mark Schaffer" <M.E.Schaffer@hw.ac.uk>