{ "_id": "6acc9276a14063b82c3a6c39", "Package": "PanelMatch", "Type": "Package", "Title": "Matching Methods for Causal Inference with Time-Series\nCross-Sectional Data", "Version": "1.0.1", "Date": "2020-02-10", "Authors@R": "c(\nperson(\"In Song\", \"Kim\", email = \"insong@mit.edu\", role = c(\"aut\", \"cre\")),\nperson(\"Adam\", \"Rauh\", email = \"amrauh@umich.edu\", role = c(\"aut\")),\nperson(\"Erik\", \"Wang\", email = \"haixiaow@Princeton.edu\", role = c(\"aut\")),\nperson(\"Kosuke\", \"Imai\", email = \"imai@harvard.edu\", role = c(\"aut\"))\n)", "Description": "Implements a set of methodological tools that enable\nresearchers to apply matching methods to time-series\ncross-sectional data. Imai, Kim, and Wang (2018)\n proposes a\nnonparametric generalization of the difference-in-differences\nestimator, which does not rely on the linearity assumption as\noften done in practice. Researchers first select a method of\nmatching each treated observation for a given unit in a\nparticular time period with control observations from other\nunits in the same time period that have a similar treatment and\ncovariate history. These methods include standard matching\nmethods based on propensity score and Mahalanobis distance, as\nwell as weighting methods. Once matching is done, both\nshort-term and long-term average treatment effects for the\ntreated can be estimated with standard errors. The package also\noffers a visualization technique that allows researchers to\nassess the quality of matches by examining the resulting\ncovariate balance.", "License": "GPL(>= 3)", "SystemRequirements": "C++11", "Encoding": "UTF-8", "LazyData": "true", "BugReports": "https://github.com/insongkim/PanelMatch/issues", "RoxygenNote": "7.1.0", "VignetteBuilder": "knitr", "Repository": "https://insongkim.r-universe.dev", "Date/Publication": "2025-02-27 22:41:44 UTC", "RemoteUrl": "https://github.com/insongkim/panelmatch", "RemoteRef": "HEAD", "RemoteSha": "20b1fb54f19ea76a7281d9671937fb7f095eace2", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-10-12 07:45:49 UTC", "User": "root" }, "Author": "In Song Kim [aut, cre],\nAdam Rauh [aut],\nErik Wang [aut],\nKosuke Imai [aut]", "Maintainer": "In Song Kim ", "_user": "insongkim", "_type": "src", "_file": "PanelMatch_1.0.1.tar.gz", "_fileid": "https://r2.ropensci.org/8eafdb731ccd04f61dbef644b872e5328f49abcee2b03a17857b64a7b9e822f0", 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