DIFF: Stata module to perform Differences in Differences estimation

Juan Villa

Statistical Software Components from Boston College Department of Economics

Abstract: diff performs several differences in differences (diff-in-diff) estimations of the treatment effect of a given outcome variable from a pooled base line and follow up dataset: Single Diff-in-Diff, Diff-in-Diff controlling for covariates, Kernel-based Propensity Score Matching diff-in-diff, and the Quantile Diff-in-Diff. diff is also suitable for estimating repeated cross section diff-in-diff (except for the kernel option).

Language: Stata
Requires: Stata version 10.0
Keywords: difference in differences; DID; average treatment effect; policy analysis; kernel matching; quantile treatment effect; balancing test (search for similar items in EconPapers)
Date: 2009-10-03, Revised 2019-12-31
Note: This module should be installed from within Stata by typing "ssc install diff". 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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Citations: View citations in EconPapers (8)

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/d/diff.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/d/diffbs.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/d/diff.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/c/CardKrueger1994.dta ancillary data file (application/x-stata)

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