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RE: st: FW: Marginal effects for the two-part model

From   Maarten buis <>
Subject   RE: st: FW: Marginal effects for the two-part model
Date   Wed, 2 Feb 2011 15:18:43 +0000 (GMT)

--- On Wed, 2/2/11, Maarten buis wrote:
> The difference between that and your two-part model is
> that in that model the dependence is included by deriving
> the inverse Mill's ratio from the selection model, add it
> to the OLS model, and adjust the standard errors. 

Nick is in a pedantic mood today(*). He correctly pointed 
out to me privately that it is Mills' ratio and not Mill's
ratio. (And the moment he told me, I remembered that he 
made that point before, and at that time I made a mental note
not to make that mistake...

-- Maarten

(*) but see the entry on pedantry in this glossary:

Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen


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