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Re: st: propensity score matching

From   "Austin Nichols" <>
Subject   Re: st: propensity score matching
Date   Tue, 28 Oct 2008 11:02:29 -0400

Murali Kuchibhotla <>:
I think you need to first think about what the relevant treatment
effect is, i.e. what would you compute assuming you observed all L
outcomes, which should tell you how to proceed with matching.  If
there is a baseline treatment "control" then you want to match the
other L-1 types to that group and estimate L-1 different treatment
effects (maybe).  If there is one treatment group and L-1 "control"
groups, see

On Tue, Oct 28, 2008 at 10:21 AM, Murali Kuchibhotla
<> wrote:
> Hello,
>      I was wondering if anyone is aware of the existance of a Stata module
> out there that can implement propensity score matching in the presence of
> multiple treatments, i.e., where there are L>2 outcomes{Y(1),Y(2)..,Y(L)} and
> only component of which can be observed for each individual, leaving the other
> L-1 outcomes as counterfactuals.
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