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st: AW: Re: AW: treatment effect estimation with an ordinal 1st step and a continuous 2nd step
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: AW: Re: AW: treatment effect estimation with an ordinal 1st step and a continuous 2nd step
Date
Sat, 17 Jul 2010 22:40:47 +0200
<>
" However, the following syntax
xi: cmp (y1 = x1) (y2 = x2 y1), ind(5 1)"
What is -xi- good for in your -cmp- call, btw?
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im Auftrag von ???
Gesendet: Samstag, 17. Juli 2010 22:17
An: "Martin Weiss"
Cc: [email protected]
Betreff: st: Re: AW: treatment effect estimation with an ordinal 1st step and a continuous 2nd step
Dear Martin,
Thanks for your comment.
It was helpful.
However, the following syntax
xi: cmp (y1 = x1) (y2 = x2 y1), ind(5 1)
where y1 = ordinal numbers like 1, 2, 3, 4
y2 = continuous
gives an error sign like "matrix___00000B not found"
And the program shows (y1 = x1) result only, which is exactly identical to
the outcome from an (oprobit y1 x1) regression.
Thanks in advance.
Jaemin
----- Original Message -----
From: "Martin Weiss" <[email protected]>
To: <[email protected]>
Sent: Saturday, July 17, 2010 10:45 PM
Subject: st: AW: treatment effect estimation with an ordinal 1st step and a
continuous 2nd step
>
> <>
>
> Try
>
> *************
> ssc d cmp
> *************
>
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von ???
> Gesendet: Samstag, 17. Juli 2010 15:29
> An: [email protected]
> Betreff: st: treatment effect estimation with an ordinal 1st step and a
> continuous 2nd step
>
> Hi all!
>
> I want to run a treatment effects model.
>
> In my case, the 1st step dependent var. is ordinal (for exmaple,
> "perfectly
> not matched", "not matched", "matched", and "perfectly matched"), and the
> 2nd step dependent var. is continuous (for example, wage in log).
> I have run the similar model using "treatreg" command if the 1st step
> depednat is binary.
>
> Is there any command working in this case.
>
> I found "mtreatreg" is available if
> (1) 1st step dependent var. is multivariate and
> (2) 2nd step DV is continuous
>
> Of course, 1st step ordinal treatment variable should be shown in the 2nd
> step equation as an independent variable explicitly.
>
> P.S.: I don't think running "oprobit" as the 1st step, and insertting IMR
> from it as independent variable into the 2nd step OLS regression is valid.
>
> Thanks,
> jaemin
>
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