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st: bivariate probit model and iteration problem


From   "Maclean, Johanna C." <[email protected]>
To   <[email protected]>
Subject   st: bivariate probit model and iteration problem
Date   Thu, 16 Dec 2004 16:18:49 -0500

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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