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fetwfe: Fused Extended Two-Way Fixed Effects

Calculates the fused extended two-way fixed effects (FETWFE) estimator for unbiased and efficient estimation of difference-in-differences in panel data with staggered treatment adoption. This estimator eliminates bias inherent in conventional two-way fixed effects estimators, while also employing a novel bridge regression regularization approach to improve efficiency and yield valid standard errors. Provides flexible tuning parameters (including user-specified or data-driven choices for penalty parameters), detailed output including overall and cohort-specific treatment effects with confidence intervals, and extensive diagnostic tools. See details in Faletto (2024) (<doi:10.48550/arXiv.2312.05985>).

Version: 0.4.4
Imports: expm, glmnet, grpreg
Suggests: bacondecomp, knitr, rmarkdown, dplyr
Published: 2025-02-21
DOI: 10.32614/CRAN.package.fetwfe
Author: Gregory Faletto [aut, cre]
Maintainer: Gregory Faletto <gfaletto at gmail.com>
License: MIT + file LICENSE
NeedsCompilation: no
Citation: fetwfe citation info
Materials: README NEWS
CRAN checks: fetwfe results

Documentation:

Reference manual: fetwfe.pdf
Vignettes: fetwfe: A Package for Fused Extended Two-Way Fixed Effects (source, R code)

Downloads:

Package source: fetwfe_0.4.4.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-devel (arm64): not available, r-release (arm64): not available, r-oldrel (arm64): not available, r-devel (x86_64): fetwfe_0.4.4.tgz, r-release (x86_64): fetwfe_0.4.4.tgz, r-oldrel (x86_64): fetwfe_0.4.4.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.