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st: New -hte- package available from SSC

From   Kit Baum <>
Subject   st: New -hte- package available from SSC
Date   Thu, 25 Feb 2010 06:28:28 -0500

A new package called -hte-, authored by Ben Jann, Jennie E. Brand, and
Yu Xie, is available from the SSC Archive. In Stata type

. ssc install hte

to install the package. 

-hte- is a command to perform heterogeneous treatment effect analysis.
It uses -pscore- by Becker and Ichino (2002) to construct balanced
propensity score strata and, within each stratum, estimates the average
treatment effect. -hte- then tests for linear trend in treatment effects
using variance-weighted least squares. The stratum-specific treatment
effects and the estimated linear trend are displayed in a twoway graph.
Note that the -pscore- command is required, which is available from the
Stata Journal website (type -net sj 5-3 st0026_2- in Stata).

An application of this methodology appears in Brand and Xie (2010).

Ben Jann (


Becker, Sascha O., and Andrea Ichino. 2002. Estimation of average
treatment effects based on propensity scores. The Stata Journal

Brand, Jennie E. and Yu Xie. 2010. Who Benefits Most from College?
Evidence for Negative Selection in Heterogeneous Economic Returns to
Higher Education. American Sociological Review 75(2).

(posted for Ben Jann)
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