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Re: st: Mhbounds v.s. rbounds in stata

From   "Ariel Linden, DrPH" <>
To   <>
Subject   Re: st: Mhbounds v.s. rbounds in stata
Date   Tue, 26 Feb 2013 11:26:24 -0500

First off, I concur with Billy's general comments below pertaining to
following accepted procedures for the Statalist.

As per you question regarding -rbounds- and -mhbounds- , both user-written
programs (findit -rbounds- and -mhbounds-): If you read the help files you'd
see that rbounds is for continuous outcomes and mhbounds is for categorical
outcomes. Given this, you could expect to get different results.


Date: Mon, 25 Feb 2013 12:23:20 -0400
From: Wen Ci <>
Subject: st: Mhbounds v.s. rbounds in stata

Dear readers,
I employed the mhbounds after psmatch2. My outcome variable and treatment
variable are all binary variables and I think the mhbounds are a better
choice compared to rbounds.
However the mhbounds produce all insignificant results even when gamm=1,
which is inconsistent with my matching results.
I also tried the rbounds, which produce normal results for my matching.
Is it because the mhbounds are designed for the matching without
replacement? My matching is completed with replacement due to the sample
size limitation.
Thank you for your answer.

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Date: Mon, 25 Feb 2013 08:33:32 -0800
From: William Buchanan <>
Subject: Re: st: Mhbounds v.s. rbounds in stata

Hi Wen,

It is unlikely that resubmitting the same question will yield any
substantively different results from what you've already experienced. The
first answer most would likely provide, is to read the Statalist FAQ as
users are required to do prior to posting to the Statalist.  -psmatch2- is a
user written command which can be installed from ssc.  Posters are asked to
identify where user-written packages come from for several reasons (not
limited to, but including determining whether the version said person is
using is the most updated version of the package).  Furthermore, the FAQ is
explicit about showing your exact syntax and Stata's exact output.  There's
good reasoning for this and it helps provide other users with information
that could be important to answering your question and giving you the help
that you need.


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