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st: "V_b-V_B is not positive definite" / XTOVERID

From   Alexandra Guisinger <>
Subject   st: "V_b-V_B is not positive definite" / XTOVERID
Date   Wed, 3 Sep 2008 09:57:19 -0400

Dear Mark,

Thank you. My apologies for making you point out such a clear error. I
was struck by the cut and paste bandit.

If I remove "robust", I no longer receive the not positive definite message.



Alexandra Guisinger
Assistant Professor
Political Science
University of Notre Dame
217 O'Shaughnessy Hall
Notre Dame, IN 46556
(574) 631-3846

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