# RD: Stata module for regression discontinuity estimation

*Austin Nichols*

Statistical Software Components from Boston College Department of Economics

**Abstract:**
rd implements a set of regression-discontinuity estimation methods that are thought to have very good internal validity, for estimating the causal effect of one explanatory variable in the case where there is an observable jump (discontinuity) in the level of the explanatory variable. Local linear regression is used to construct point estimates. Graphics dictate Stata 8.2 or later. An older version of the software is also included as rd_obs.

**Language:** Stata

**Requires:** Stata version 8.2

**Keywords:** regression discontinuity; internal validity; policy analysis (search for similar items in EconPapers)

**Date:** 2007-11-06, Revised 2014-06-14

**Note:** This module should be installed from within Stata by typing "ssc install rd". Windows users should not attempt to download these files with a web browser.

**References:** Add references at CitEc

**Citations** View citations in EconPapers (5) Track citations by RSS feed

**Downloads:** (external link)

http://fmwww.bc.edu/repec/bocode/r/rd.ado program code (text/plain)

http://fmwww.bc.edu/repec/bocode/r/rd.hlp help file (text/plain)

http://fmwww.bc.edu/repec/bocode/r/rd_obs.ado program code (text/plain)

http://fmwww.bc.edu/repec/bocode/r/rd_obs.hlp help file (text/plain)

http://fmwww.bc.edu/repec/bocode/v/votex.dta sample data file (application/x-stata)

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**Persistent link:** http://EconPapers.repec.org/RePEc:boc:bocode:s456888

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