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convergence issues with nlsur (parameters constrained to zero or tending to infinity)
convergence issues with nlsur (parameters constrained to zero or tending to infinity)

Hi all,

I am running nlsur estimations and I am experiencing some difficulty in convergence. Out of 26 parameters to be estimated, 1 is constrained by Stata to zero (ra0) and another one (ck0) tends to infinity (no standard error is estimated). I am joining the estimation output ( nlsur.pdf ). Have some of you an idea of what could be the reason behind these problems?

Thanks in advance,
Luca

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convergence issues with nlsur (parameters constrained to zero or tending to infinity)

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