st: RE: bivariate probit model and iteration problem

["FEIVESON, ALAN H. (AL) (JSC-SK) (NASA)" <alan.h.feiveson@nasa.gov>]

If you don't trust the estimates or standard errors, you might try
bootstrapping.
Al Feiveson

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Maclean,
Johanna C.
Sent: Thursday, December 16, 2004 3:19 PM
To: statalist@hsphsun2.harvard.edu
Subject: st: bivariate probit model and iteration problem


Hello,

I am estimating a bivariate probit model using the bprobit command.
Stata must go through a large number of iterations before it can compute
the estimates.  Additionally, Stata displays the statement 'not concave'
beside some of the iterations.  Both equations in the bivariate probit
have a fair number of right hand side variables and my sample size is
not overly large (approximately 2000).  Should I place much faith in
these estimates?

Thanks very much

Catherine Maclean

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