# BACONDECOMP: Stata module to perform a Bacon decomposition of difference-in-differences estimation

*Andrew Goodman-Bacon* (),
*Thomas Goldring* () and
*Austin Nichols*

Statistical Software Components from Boston College Department of Economics

**Abstract:**
bacondecomp shows a Bacon decomposition of difference-in-differences estimation with variation in treatment timing. The two-way fixed effects DD model is a weighted average of all possible two-group/two period DD estimators. The command generates a scatterplot of 2x2 difference-in-difference estimates and their associated weights. The data must be xtset and the variable list must include an outcome as the first item, and a treatment that can only turn from zero to one during the time period examined as its second item.

**Language:** Stata

**Requires:** Stata version 10.2

**Keywords:** Bacon decomposition; DiD; difference-in-differences (search for similar items in EconPapers)

**Date:** 2019-07-30, Revised 2019-09-15

**Note:** This module should be installed from within Stata by typing "ssc install bacondecomp". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.

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**Downloads:** (external link)

http://fmwww.bc.edu/repec/bocode/b/bacon.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/baconde.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bac.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondecomp.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/ba.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/b.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/baconde.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondec.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacond.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondecom.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondecomp.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondecom.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacon_example.dta (application/x-stata)

http://fmwww.bc.edu/repec/bocode/b/ba.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/baco.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacon.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/baco.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bac.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/b.ado (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondeco.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondec.sthlp (text/plain)

http://fmwww.bc.edu/repec/bocode/b/bacondeco.ado (text/plain)

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**Persistent link:** https://EconPapers.repec.org/RePEc:boc:bocode:s458676

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