augsynth: Augmented Synthetic Control Method

Overview

This package implements the Augmented Synthetic Control Method (ASCM). In particular, there are three types of ASCM implemented in this package:

1. single_augsynth: The ASCM version of the classic synthetic control approach with a single treated unit.
2. multisynth: ASCM that estimates the treatment effect for multiple treated units with staggered adoption.
3. augsynth_multiout: ASCM for a single treated unit with multiple outcomes.

For a more detailed description of the main functionality check out:

• the vignette for simultaneous adoption
• the vignette for staggered adoption

Installation

To install this package, first ensure that devtools is installed with

install.packages("devtools")

then install the package from GitHub with

devtools::install_github("ebenmichael/augsynth")

Basic usage

To get started, use a panel dataset with an outcome measure, a treatment indicator, a unit indicator, a time variable, and an intervention time t_int. Then run

asyn <- augsynth(outcome ~ trt, unit, time, t_int, data)