is a statistical software that implements
synthetic control methods for causal inference
in comparative case studies with aggregate
data as described in Abadie
and Gardeazabal (2003), Abadie,
Diamond, and Hainmueller(2010), and Abadie,
Diamond, and Hainmueller (2013).
The Synth package for R is also described
in detail in Abadie,Diamond,
and Hainmueller (2011).
The synthetic control method allows for effect
estimation in settings where a single unit (a
state, country, firm, etc.) is exposed to an
event or intervention. It provides a
data-driven procedure to construct synthetic
control units based on a convex combination of
comparison units that approximates the
characteristics of the unit that is exposed to
the intervention. A combination of comparison
units often provides a better comparison for
the unit exposed to the intervention than any
comparison unit alone.
available for MATLAB, Stata, and R. Feedback
from users is appreciated. If you
encounter a problem with the software
please first check the FAQ before
Click here for a short video
about the method.
|Synth for Stata
installing Synth, please make sure that
your Stata is up to date (ie.
all on the Stata command prompt).
install Synth for Stata type:
ssc install synth, replace all
Synth for Stata
runs on Stata versions 9-15 (32 and 64
bit), but contains a platform dependent
plugin. Net install will automatically
copy the correct version of the plugin
to your computer. Currently, plugin
versions are included for Windows
Vista, 7, 8) for 32 and 64
bit Stata, Mac platforms (OS
X on x86-32, x86-64, PPC-32 and PPc-64) for Stata 32 or 64 bit, and
for 32 and 64 bit Stata. If a plugin
is not availbale for your platform,
you will receive an error message
during the installation. In this case
you can download
the C code to compile the
plugin on your platform here.
Package for R
- To obtain the Synth
package for R from CRAN typing:
- Source: http://cran.r-project.org/web/packages/Synth/index.html