7 Regression discontinuity

7.1 Introduction

Oct 29. Slides. After class, read Huntington Klein 2021 Chapter 20, sections 20.1 and 20.3.4. Slides with annotations from lecture: Annotated Slides.

In some settings, a treatment is assigned based solely off the value of a continuous variable. In these situations, we can identify a local ATE without many additional assumptions. Today will introduce how this works using regression discontinuity designs.

7.2 Lab: Regression Discontinuity - Bandwidth and Examples

Oct 30 Slides. Download today’s .Rmd document here. After lab, read Huntington Klein 2021 Chapter 20, section 20.2.1.

We’ll discuss a bandwidth selection and triangular weighting. We’ll also apply regression discontinuity to a concrete example and give you a chance to try it out for yourself.

7.3 Discussion

Oct 31. Slides. After class, read Huntington Klein 2021 Chapter 20, sections 20.2.2. through 20.2.4. R Code Example: Fuzzy RDD

We’ll continue our discussion of regression discontinuity designs by discussing fuzzy RDD and validation checks for RDD.