Package did2s updated to version 1.2.1 with previous version 1.2.0 dated 2025-09-19

Wed, 04 Mar 2026 19:02:00 CDT

Title: Two-Stage Difference-in-Differences Following Gardner (2021)
Description: Estimates Two-way Fixed Effects difference-in-differences/event-study models using the approach proposed by Gardner (2021) <doi:10.48550/arXiv.2207.05943>. To avoid the problems caused by OLS estimation of the Two-way Fixed Effects model, this function first estimates the fixed effects and covariates using untreated observations and then in a second stage, estimates the treatment effects.
Author: Kyle Butts [aut, cre] , John Gardner [aut] , Grant McDermott [ctb] , Laurent Berge [ctb]
Maintainer: Kyle Butts <buttskyle96@gmail.com>

Diff between did2s versions 1.2.0 dated 2025-09-19 and 1.2.1 dated 2026-03-04

 DESCRIPTION                                       |    6 ++---
 MD5                                               |   24 +++++++++++-----------
 R/data.R                                          |    3 +-
 R/did2s.R                                         |    9 +++++---
 build/vignette.rds                                |binary
 data/castle.rda                                   |binary
 data/df_het.rda                                   |binary
 data/df_hom.rda                                   |binary
 inst/doc/Two-Stage-Difference-in-Differences.html |    8 +++----
 man/castle.Rd                                     |    3 +-
 man/did2s.Rd                                      |    7 +++---
 tests/testthat/test-did2s.R                       |   12 +++--------
 tests/testthat/test-event-study.R                 |    3 --
 13 files changed, 38 insertions(+), 37 deletions(-)

More information about did2s at CRAN