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# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "fdid" in publications use:'
type: software
license: MIT
title: 'fdid: Factorial Difference-in-Differences'
version: 1.0.2
doi: 10.32614/CRAN.package.fdid
abstract: Implements the factorial difference-in-differences (FDID) framework for
  panel data settings where all units are exposed to a universal event but vary in
  a baseline factor G. Provides support for various estimators; supports robust, bootstrap,
  and jackknife variance; returns dynamic, pre/event/post aggregates and raw means;
  and includes helpers for data preparation and plotting. Methodology follows Xu,
  Zhao and Ding (2026) <https://doi.org/10.1080/01621459.2026.2628343>.
authors:
- family-names: Xu
  given-names: Yiqing
  email: yiqingxu@stanford.edu
- family-names: Lipkovitz
  given-names: Rivka
  email: rivkal@mit.edu
- family-names: Liu
  given-names: Enhan
  email: enhan@uchicago.edu
repository: https://xuyiqing.r-universe.dev
repository-code: https://github.com/xuyiqing/fdid
commit: defdd389959ee64fc0685f50a37532db9aaa80f6
url: https://yiqingxu.org/packages/fdid/
date-released: '2026-03-18'
contact:
- family-names: Xu
  given-names: Yiqing
  email: yiqingxu@stanford.edu