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st: Error in xtabond-description in the manual

From   TEWODAJ MOGUES <[email protected]>
To   Stata _ <[email protected]>
Subject   st: Error in xtabond-description in the manual
Date   Sat, 21 Aug 2004 11:18:47 -0400

Dear Statalisters (and Stata programmers)
I don't know if I have not-the-newest Stata manual books, but in the one I have there is an error in the way that the mathematical expression of the Arellano-Bond estimator (programmed by xtabond) is written down. In the xt book, on page 31, The expressions for delta2-hat and for Q2 should include A2^(-1), and not A2.

Tewodaj Mogues
Dept. of Agricultural and Applied Economics
University of Wisconsin - Madison
427 Lorch St. #317, Taylor Hall
Madison, WI 53706

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