Doesn't that equality hold by definition? In that case there is no need to test it.
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Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z214
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
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-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Gauri Khanna
Sent: donderdag 13 april 2006 16:05
To: statalist@hsphsun2.harvard.edu
Subject: st: RE: RE: More on F test and the translog
The translog described in my email does not estimate Beta21, Beta31 and
Beta32. The reason is because when one estimates the translog,, LnX1.LnX2 is
the same as Ln.X2.LnX1, similarly for LnX2.LnX3=LnX3.LnX2 etc.. These cross
products are not viewed as different from each other and hence only one of
the pair is estimated.
But the homogeneity test requires equality between Beta(12)=Beta(21) etc in
addition to the others..
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