Package: PanelMatch
Type: Package
Title: Matching Methods for Causal Inference with Time-Series
        Cross-Sectional Data
Version: 3.1.3
Date: 2025-12-12
Authors@R: c(
  person("In Song", "Kim", email = "insong@mit.edu", role = c("aut", "cre")),
  person("Adam", "Rauh", email = "amrauh@umich.edu", role = c("aut")),
  person("Erik", "Wang", email = "haixiaow@Princeton.edu", role = c("aut")),
  person("Kosuke", "Imai", email = "imai@harvard.edu", role = c("aut"))
  )
Description: Implements a set of methodological tools
	     that enable researchers to apply matching methods to
	     time-series cross-sectional data. Imai, Kim, and Wang
	     (2023) <http://web.mit.edu/insong/www/pdf/tscs.pdf> 
	     proposes a nonparametric generalization of the
	     difference-in-differences estimator, which does not rely
	     on the linearity assumption as often done in
	     practice. Researchers first select a method of matching
	     each treated observation for a given unit in a
	     particular time period with control observations from
	     other units in the same time period that have a similar
	     treatment and covariate history. These methods include
	     standard matching methods based on propensity score and
	     Mahalanobis distance, as well as weighting methods. Once 
	     matching and refinement is done,  
	     treatment effects can be estimated with 
	     standard errors. The package also offers diagnostics for researchers to assess the quality 
	     of their results.
License: GPL (>= 3)
Imports: Rcpp (>= 0.12.5), data.table, ggplot2, CBPS, stats, graphics,
        MASS, Matrix, doParallel, foreach, methods
Depends: R (>= 2.14.0)
LinkingTo: RcppArmadillo, Rcpp, RcppEigen
Encoding: UTF-8
LazyData: true
BugReports: https://github.com/insongkim/PanelMatch/issues
RoxygenNote: 7.3.1
Suggests: knitr, rmarkdown, testthat (>= 2.1.0)
VignetteBuilder: knitr
NeedsCompilation: yes
Packaged: 2025-12-12 17:45:39 UTC; adamrauh
Author: In Song Kim [aut, cre],
  Adam Rauh [aut],
  Erik Wang [aut],
  Kosuke Imai [aut]
Maintainer: In Song Kim <insong@mit.edu>
Repository: CRAN
Date/Publication: 2025-12-13 21:10:09 UTC
Built: R 4.7.0; x86_64-w64-mingw32; 2026-06-08 02:16:12 UTC; windows
Archs: x64
