RDDID: Stata module to perform Difference-in-Discontinuities estimation by wrapping the rdrobust package

Jonathan Dries ()
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Jonathan Dries: LUISS Guido Carli University

Statistical Software Components from Boston College Department of Economics

Abstract: rddid performs a Difference-in-Discontinuities estimation. It estimates the discontinuity in depvar at the cutoff of runvar for a Treated group and subtracts the discontinuity found in a Control group. It relies on rdrobust for underlying estimation and bandwidth selection. Without the bootstrap option, analytic standard errors are computed assuming independence between groups. This assumption is appropriate when groups correspond to distinct units (e.g., different countries or boundaries). When groups share the same units (e.g., panel pre/post), use bootstrap to obtain valid standard errors.

Language: Stata
Requires: Stata version 14 and rdrobust from SSC (q.v.)
Keywords: difference-in-discontinuities; bandwidth; running variable (search for similar items in EconPapers)
Date: 2026-03-03
Note: This module should be installed from within Stata by typing "ssc install rddid". 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/r/rddid.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/r/rddid.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/r/rddidplot.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/r/rddid_post_bw.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/r/rddidplot.sthlp help file (text/plain)

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