Dear Amy,
Have you had a look at the postestimation tools for -xtabond- or -xtdpd- (estat abond, estat sargan)?
Rodolphe
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of amy peggy
Sent: jeudi 10 septembre 2009 04:29
To: [email protected]
Subject: st: System dynamic panel data estimation missing results
Dear Stata users,
After I run Arellano-Bond dynamic panel-data estimation or System
dynamic panel data estimation, the sargan results, AR1 or AR2 results
doesn't show up / not available at all.
below is the result I got:
Arellano-Bond dynamic panel-data estimation Number of obs = 135
Group variable: firm Number of groups = 23
Time variable: year
Obs per group: min = 3
avg = 5.869565
max = 6
Number of instruments = 26 Wald chi2(5) = 19.77
Prob > chi2 = 0.0014
One-step results
------------------------------------------------------------------------------
roa | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
roa |
L1. | .371731 .095579 3.89 0.000 .1843997 .5590623
size | -.0459726 .0253226 -1.82 0.069 -.095604 .0036588
loanloss | -.0539691 .1073562 -0.50 0.615 -.2643833 .1564451
age | .0104948 .0117713 0.89 0.373 -.0125764 .0335661
rgdp | -1.85e-07 3.76e-07 -0.49 0.622 -9.21e-07 5.51e-07
_cons | .2696662 .4181512 0.64 0.519 -.549895 1.089227
------------------------------------------------------------------------------
Instruments for differenced equation
GMM-type: L(2/.).roa
Standard: D.size D.loanloss D.age D.rgdp
Instruments for level equation
Standard: _cons
.
so, refer to the above table results, it shows all those instruments
for differenced equation which suppose to be sargan, AR1/AR2 results.
Pls advise and help me how to get the results.
Thank you very much.
regards,
Amy
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