EquiTrends: Equivalence Testing for Pre-Trends in Difference-in-Differences Designs

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 “equivalent” to those in the control group. Here, “equivalence” 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:

Reference manual:

EquiTrends.pdf

Downloads:

Package source:	EquiTrends_1.0.0.tar.gz
Windows binaries:	r-devel: EquiTrends_1.0.0.zip, r-release: EquiTrends_1.0.0.zip, r-oldrel: EquiTrends_1.0.0.zip
macOS binaries:	r-release (arm64): EquiTrends_1.0.0.tgz, r-oldrel (arm64): EquiTrends_1.0.0.tgz, r-release (x86_64): EquiTrends_1.0.0.tgz, r-oldrel (x86_64): EquiTrends_1.0.0.tgz

Linking:

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