st: New -hte- package available from SSC

[Kit Baum <baum@bc.edu>]

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).

Best,
Ben Jann (jannb@ethz.ch)

References:

Becker, Sascha O., and Andrea Ichino. 2002. Estimation of average
treatment effects based on propensity scores. The Stata Journal
2:358-377.

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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