In Stata, how do I perform propensity score matching?
Stata does not have a built-in command for propensity score matching, a non-experimental method of sampling that produces a control group whose distribution of covariates is similar to that of the treated group. However, there are several user-written modules for this method. The following modules are among the most popular:psmatch2.ado pscore.ado nnmatch.ado
psmatch2.ado was developed by Leuven and Sianesi (2003)
pscore.ado by Becker and Ichino (2002). More
recently, Abadie, Drukker, Herr, and Imbens (2004) introduced
nnmatch.ado. All three modules support pair-matching as
well as subclassification.
You can find these modules using the
.net command as follows:
You can install these modules using the
.net command, for example:
After installation, read the help files to find the correct usage, for example:.help psmatch2
If you have questions about using statistical and mathematical software at Indiana University, email UITS Research Analytics (formerly known as the Stat/Math Center). Research Analytics is located on the IU Bloomington campus at 410 N. Park Avenue and is open for consultation by appointment Monday-Friday 9am-5pm. For more, visit Research Analytics on the web, or call 812-855-4724 (IUB) or 317-278-4740 (IUPUI).
Last modified on April 25, 2012.