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st: probit "backed up"


From   Helen Markelova <marke146@umn.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: probit "backed up"
Date   Mon, 11 Mar 2013 11:45:14 -0500

Dear all,

I'm having problems with a simple probit not converging---the output says "backed up" after 4-5 iterations. Im using Medical Expenditure Panel Survey from 1996-2010 (about 217,000 observations) and running a probit on the probability of being privately insured (private (0,1) as the dependent variable). The explanatory variables include a number of dummy variables, but even if I limit the list to only a few dummy and continuous variables (family size, age, male, black, employed), it still won't converge. Any suggestions on what else to try? Im using Stata 12.

Thank you,
Helen







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