Analysis of Regression Discontinuity Designs with Multiple Cutoffs or Multiple Scores

We introduce the $\mathtt{\text{Stata}}$ (and $\mathtt{\text{R}}$) package $\mathtt{\text{rdmulti}}$, which includes three commands ($\mathtt{\text{rdmc}}$, $\mathtt{\text{rdmcplot}}$, $\mathtt{\text{rdms}}$) for analyzing Regression Discontinuity (RD) designs with multiple cutoffs or multiple scores. The command $\mathtt{\text{rdmc}}$ applies to non-cumulative and cumulative multi-cutoff RD settings. It calculates pooled and cutoff-specific RD treatment effects, and provides robust bias-corrected inference procedures. Post estimation and inference is allowed. The command $\mathtt{\text{rdmcplot}}$ offers RD plots for multi-cutoff settings. Finally, the command $\mathtt{\text{rdms}}$ concerns multi-score settings, covering in particular cumulative cutoffs and two running variables contexts. It also calculates pooled and cutoff-specific RD treatment effects, provides robust bias-corrected inference procedures, and allows for post-estimation estimation and inference. These commands employ the $\mathtt{\text{Stata}}$ (and $\mathtt{\text{R}}$) package $\mathtt{\text{rdrobust}}$ for plotting, estimation, and inference. Companion $\mathtt{\text{R}}$ functions with the same syntax and capabilities are provided.