The rddensity package provides Stata and R implementations of manipulation tests employing local polynomial density estimation methods. This method is useful for falsification of Regression Discontinuity Designs, as well as for testing for self-selection or sorting in other contexts. This implementation provides hypothesis tests and bandwidth selectors for manipulation testing. This work is supported by the National Science Foundation through grants SES-1357561, SES-1459931 and SES-1459967.

For technical, methodological and implementation details see:

• Cattaneo, Jansson and Ma (2018): Manipulation Testing based on Density Discontinuity, Stata Journal 18(1): 234-261, 1st Quarter 2018.
• Cattaneo, Jansson and Ma (2017): Simple Local Regression Distribution Estimators, working paper. [Supplemental appendix]

Implementation in Stata

• To install/update in Stata type:

    net install rddensity, from(https://sites.google.com/site/rdpackages/rddensity/stata) replace
  

  or

    github install iphone7725/rddensity
  

• Help files: rddensity, rdbwdensity -- Replication files: do-file, data-senate

• Repository for manual installation: https://sites.google.com/site/rdpackages/rddensity/stata

Implementation in R:

• To install/update in R type:

    install.packages('rddensity')
  

• Manual -- Replication files: Illustration, R-script, data-senate

• CRAN repository

Last update: October 7, 2017.