Package: DRDID Type: Package Title: Doubly Robust Difference-in-Differences Estimators Version: 1.3.0 Authors@R: c(person("Pedro H. C.", "Sant'Anna", email = "pedrohcgs@gmail.com", role = c("aut", "cre", "cph")), person("Jun", "Zhao", email = "beanzhaojun11@gmail.com",role = c("aut")) ) Description: Implements the locally efficient doubly robust difference-in-differences (DiD) estimators for the average treatment effect proposed by Sant'Anna and Zhao (2020) . The estimator combines inverse probability weighting and outcome regression estimators (also implemented in the package) to form estimators with more attractive statistical properties. Two different estimation methods can be used to estimate the nuisance functions. URL: https://psantanna.com/DRDID/, https://github.com/pedrohcgs/DRDID License: GPL-3 Encoding: UTF-8 LazyData: true Depends: R (>= 3.5) Imports: stats, trust, BMisc (>= 1.4.1), Rcpp (>= 1.0.12), fastglm (>= 0.0.3) LinkingTo: Rcpp (>= 1.0.12) RoxygenNote: 7.3.2 Suggests: knitr, rmarkdown, spelling, testthat Date: 2026-06-09 Language: en-US BugReports: https://github.com/pedrohcgs/DRDID/issues Config/pak/sysreqs: libicu-dev Repository: https://pedrohcgs.r-universe.dev Date/Publication: 2026-06-09 19:46:55 UTC RemoteUrl: https://github.com/pedrohcgs/drdid RemoteRef: HEAD RemoteSha: 85807cfbddbd64cc6f3f8ba37f52d07c6c3acc65 NeedsCompilation: yes Packaged: 2026-06-09 21:53:37 UTC; root Author: Pedro H. C. Sant'Anna [aut, cre, cph], Jun Zhao [aut] Maintainer: Pedro H. C. Sant'Anna