Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, is already up and running.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: Propensity Score Matching (PSM) - matching problem

From   umut senalp <>
To   <>
Subject   st: Propensity Score Matching (PSM) - matching problem
Date   Thu, 6 Sep 2012 02:40:27 +0300

Dear Statalisters,
I am currently working with a panel containing around 9.000 firms and
trying to evaluate the exports effects on firm-level productivity, and
I use Matching approach (Propensity Score Matching) to get the
treatment/export effects (on treated - ATT).
I use -psmatch2.ado- (writen by Edwin Leuven and Barbara Sianesi) 
I already matched the exporters with non exporters. However, I am
having some problems with the application of the method. The problem 
is PSM procedure allows the PSM algorithm to match
a treated firm with a treatment-group firm (and sometime itself) 
after the treatment is over, by considering
treated firmsafter treatment as if they were control firms.
What I would like to ask is if is there any solution about the problem.
I would be glad if you could provide me a hint on this issue.
Kind regards 		 	   		  
*   For searches and help try:

© Copyright 1996–2016 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index