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st: xtabond

From   "Harald Badinger" <[email protected]>
To   [email protected]
Subject   st: xtabond
Date   Tue, 6 Aug 2002 12:46:00 +0200

dear everybody,

it is paradox; I have a (panel) data set (which is correctly tsset) 
with 6 observations on y(i) (1, ... 6) and 5 observations on x(i) (2 ... 

the results are completely differnt for "xtabond y x" and
"xtabond y x if obs>2" (obs is a variable indicating time).

This is the more surprising as the outpout (correctly) indicates he 
use of 4 (time) observations in both cases. Also, the relevant 
information in "est list" is identical in both cases (Ti,t_max, t_min).

Can anyone explain this strange results to me?

Thanks a lot,
Best regards


A further hint: the results are identical for "xtabond y, pre(x)" and 
"xtabond y if obs>2, pre(x)" 

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