Notes on Regression Discontinuity Methods - [athena.sas.upenn ...

Fuzzy Regression Discontinuity Designs
1. Graph the average outcomes over a set of bins as in the case of
SRD, but also graph the probability of treatment.
2. Estimate the treatment effect using TSLS applied only to data
within h of the cut-off (above and below), which is numerically
equivalent to computing the ratio in the estimate of the jump (at
the cutoff point) in the outcome variable over the jump in the
treatment variable.
3. Standard errors can be computed using robust TSLS estimates
or using a plug-in estimator.