Robust Local Polynomial Methods for RD designs with Multiple Cutoffs or Multiple Scores

The package rdmulti implements estimation, inference, and graphical procedures for Regression Discontinuity (RD) designs with multiple cutoffs or multiple scores.

• rdmc: point estimation and robust bias-corrected inference for multi-cutoff designs.
• rdmcplot: data-driven RD plots for multi-cutoff designs.
• rdms: point estimation and robust bias-corrected inference for multi-score designs.

Python Implementation

To install/update in Python type:

pip install rdmulti

• Help: PYPI repository.

• Replication: rdmulti illustration, multi-cutoff data, cumulative-cutoff data, multi-score data.

R Implementation

To install/update in R type:

install.packages('rdmulti')

• Help: R Manual, CRAN repository.

• Replication: rdmulti illustration, rdmcplot illustration, multi-cutoff data, cumulative-cutoff data, multi-score data, R illustration.

Stata Implementation

To install/update in Stata type:

net install rdmulti, from(https://raw.githubusercontent.com/rdpackages/rdmulti/main/stata) replace

• Help: rdmc, rdmcplot, rdms.

• Replication: rdmulti illustration, rdmcplot illustration, multi-cutoff data, cumulative-cutoff data, multi-score data.

References

For overviews and introductions, see the rdpackages website.

Software and Implementation

• Cattaneo, Titiunik and Vazquez-Bare (2020): Analysis of Regression Discontinuity Designs with Multiple Cutoffs or Multiple Scores.
  Stata Journal 20(4): 866-891.

Technical and Methodological

• Keele and Titiunik (2015): Geographic Boundaries as Regression Discontinuities.
  Political Analysis 23(1): 127-155.

• Cattaneo, Keele, Titiunik and Vazquez-Bare (2016): Interpreting Regression Discontinuity Designs with Multiple Cutoffs.
  Journal of Politics 78(4): 1229-1248.
  Supplemental Appendix.

• Cattaneo, Keele, Titiunik and Vazquez-Bare (2020): Extrapolating Treatment Effects in Multi-Cutoff Regression Discontinuity Designs.
  Journal of the American Statistical Association 116(536): 1941-1952.
  Supplemental Appendix.

Funding

This work was supported in part by the National Science Foundation through grant SES-1357561.