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st: two step procedure

From   "Xu, Xin" <>
Subject   st: two step procedure
Date   Sun, 16 Sep 2007 10:49:30 -0500 (CDT)

Dear all,

Does anybody know how to calculate Murphy-Topel variance estimator? I am
aware of Hardin(2002) paper and Hole et al. (2006) paper. However, in my
case, I have two steps coming from two different data sets which I append
them together. Therefore, it is hard for me to calculate C and R matrix as
shown in their paper.

Many thanks,

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