francesca.modena--
You might also be interested in
Thomas A. DiPrete and Markus Gangl (2004). Assessing Bias in the
Estimation of Causal Effects: Rosenbaum Bounds on Matching Estimators
and Instrumental Variables Estimation with Imperfect Instruments.
Sociological Methodology, 34: 271-310.
http://www.jstor.org/stable/3649376
and -findit rbounds-
On Tue, Oct 28, 2008 at 11:47 AM, Austin Nichols
<[email protected]> wrote:
> francesca.modena--
>
> Note it is not really a "sample selection problem" so much as a
> treatment (T=1) selection problem. Matching or an IV approach (like
> the -treatreg- model proposed in the original post) each requires
> different assumptions.
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