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Re: st: Districts in PSM


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Districts in PSM
Date   Tue, 27 Sep 2011 16:27:54 +0100

Henrik wrote to me privately. I want to underline that this is
deprecated as a way of continuing Statalist threads for all the
reasons already explained in detail at
http://www.stata.com/support/faqs/res/statalist.html#private

Indeed, here's another reason not mentioned there, but I trust clear
enough. A posting to a Statalist thread can often contain precisely
all that someone knows about a subject. It is not an offer to provide
further private support.

Now for a direct answer.

Sorry, but as I already indicated I don't do this kind of thing and I
have no idea whether your problem has already been solved, or even if
it is a good question.

Also, I doubt that the manuals anywhere discuss propensity score
matching. This is one of many areas which StataCorp is, I guess, very
happy to leave to users who have that specific interest and do work in
that area.

I hope you get better replies from people who know about this.

Nick

On Tue, Sep 27, 2011 at 3:47 PM, Henrik Wiig <henrik.wiig@nibr.no> wrote:
> Hi Nick!
>
> Thanks for your quick answer.
>
> Unfortunately, I do not know much about dose-response either, but talking to seasoned stata users and impact analysists, they have actually never separated the households by subcategories of the observations. It seems like the problem is finding the error term through bootstrapping, which has to be done for each district and then aggregated in one way or another afterward.
>
> And I have searched the stata manual for a long time without success. This surprices me too, as I would think that splitting into the dataset into homogenous cultures and then compare households, would be the obvious thing to do.
>
> In exactly what command do you find this problem solved?

> Fra: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] p&#229; vegne av Nick Cox [njcoxstata@gmail.com]

> I don't do this kind of thing at all, but
>
> . findit propensity
>
> indicates what has been done, and there is a lot. These are the
> examples to follow if your problem has not already been tackled.

> On Tue, Sep 27, 2011 at 3:06 PM, Henrik Wiig <henrik.wiig@nibr.no> wrote:
>
>> My cross section dataset is collected from 10 district with different local cultures and hence omitted variables that both affects my treatment and dependent variable. I would hence like to run Propensity Score Matching (PSM), but then only compare treatment with control households within each district, not between districts.
>>
>> Does a ready made command in Stata exist? If not, someone gave me a tip of programming the operation in an .ado file. Have anyone done this and could hence send me an example of how this is done?

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