{* *! version 1.0.3  11feb2011}{...}
{marker special}{...}
{title:Special-interest postestimation commands}

{pstd}
{cmd:estat abond} reports the Arellano-Bond test for serial correlation in
the first-differenced residuals.

{pstd}
{cmd:estat sargan} reports the Sargan test of the overidentifying
restrictions.
