Testing for parallel trends is crucial in the Difference-in-Differences framework. To this end, this package performs equivalence testing in the context of Difference-in-Differences estimation. It allows users to test if pre-treatment trends in the treated group are âequivalentâ to those in the control group. Here, âequivalenceâ means that rejection of the null hypothesis implies that a function of the pre-treatment placebo effects (maximum absolute, average or root mean squared value) does not exceed a pre-specified threshold below which trend differences are considered negligible. The package is based on the theory developed in Dette & Schumann (2024) <doi:10.1080/07350015.2024.2308121>.
Version: 1.0.0 Depends: R (≥ 3.5.0) Imports: clubSandwich, nloptr, dplyr, rlang, plm, Rcpp (≥ 1.0.12), RcppParallel, stats, VGAM LinkingTo: Rcpp, RcppArmadillo, RcppParallel Suggests: testthat (≥ 3.0.0) Published: 2024-09-03 DOI: 10.32614/CRAN.package.EquiTrends Author: Ties Bos [aut, cre], Martin Schumann [ctb] Maintainer: Ties Bos <tc.bos at student.maastrichtuniversity.nl> BugReports: https://github.com/TiesBos/EquiTrends/issues License: MIT + file LICENSE URL: https://github.com/TiesBos/EquiTrends NeedsCompilation: yes Materials: README, NEWS CRAN checks: EquiTrends results Documentation: Downloads: Linking:Please use the canonical form https://CRAN.R-project.org/package=EquiTrends to link to this page.
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