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st: St: Xtabond - inst(varlist) - lags included?

From   "Boylan, Richard" <[email protected]>
To   <[email protected]>
Subject   st: St: Xtabond - inst(varlist) - lags included?
Date   Sat, 7 Feb 2004 09:38:49 -0600

I sent this message twice yesterday, but never received it, so I am sending it again today. My apologies if anyone receives for a third time.

	In the description of xtabond, the STATA manual mentions that when selecting the inst(varlist) option these instruments are not differenced before including in the instrument matrix.  My question is, are the values of the variables in varlist at time t included in the instrument matrix, or the values of varlist at time t, t-1,…?


	Richard Boylan 
	Associate Professor of Economics 
	University of Alabama 
	Culverhouse College of Commerce & Business Administration 
	Tuscaloosa, AL 35487-0224 
	205-348-8967, fax 205-348-0590 

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