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

Author

Listed:
  • Jonathan Dries

    (LUISS Guido Carli University)

Programming Language

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.

Suggested Citation

  • Jonathan Dries, 2026. "RDDID: Stata module to perform Difference-in-Discontinuities estimation by wrapping the rdrobust package," Statistical Software Components S459585, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459585
    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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    File URL: http://fmwww.bc.edu/repec/bocode/r/rddid.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/r/rddid.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/r/rddidplot.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/r/rddid_post_bw.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/r/rddidplot.sthlp
    File Function: help file
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