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INTERFLEX: Stata module to estimate multiplicative interaction models with diagnostics and visualization

Author

Listed:
  • Yiqing Xu

    (University of California, San Diego)

  • Jens Hainmueller,

    (Stanford University)

  • Jonathan Mummolo

    (Stanford University)

  • Licheng Liu

    (Tsinghua University)

Programming Language

Stata

Abstract

interflex performs diagnostics and visualizations of multiplicative interaction models. Besides conventional linear interaction models, it provides two additional estimation strategies--linear regression based on pre-specified bins and locally linear regressions based on Gaussian kernel reweighting--to estimate the conditional marginal effect of a treatment variable on an outcome variable across different values of a moderating variable. These approaches relax the linear interaction effect assumption and safeguard against excessive extrapolation.

Suggested Citation

  • Yiqing Xu & Jens Hainmueller, & Jonathan Mummolo & Licheng Liu, 2017. "INTERFLEX: Stata module to estimate multiplicative interaction models with diagnostics and visualization," Statistical Software Components S458314, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s458314
    Note: This module may be installed from within Stata by typing "ssc install interflex". 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.
    as

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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex_s1.dta
    File Function: sample data file
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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex_s2.dta
    File Function: sample data file
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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex_s3.dta
    File Function: sample data file
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    File URL: http://fmwww.bc.edu/repec/bocode/i/interflex_s4.dta
    File Function: sample data file
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