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Home | Events Archive | Flexible Covariate Adjustments in Regression Discontinuity Designs
Seminar

Flexible Covariate Adjustments in Regression Discontinuity Designs


  • Series
    Econometrics Seminars and Workshop Series
  • Speaker(s)
    Claudia Noack (University of Oxford, United Kingdom)
  • Field
    Econometrics
  • Location
    University of Amsterdam, Room E5.22
    Amsterdam
  • Date and time

    April 14, 2023
    12:30 - 13:30

Abstract
Empirical regression discontinuity (RD) studies often use covariates to increase the precision of their estimates. In this paper, we propose a novel class of estimators that use such covariate information more efficiently than the linear adjustment estimators that are currently used widely in practice. Our approach can accommodate a possibly large number of either discrete or continuous covariates. It involves running a standard RD analysis with an appropriately modified outcome variable, which takes the form of the difference between the original outcome and a function of the covariates. We characterize the function that leads to the estimator with the smallest asymptotic variance, and show how it can be estimated via modern machine learning, nonparametric regression, or classical parametric methods. The resulting estimator is easy to implement because tuning parameters can be chosen as in a conventional RD analysis. An extensive simulation study and an empirical application illustrate the performance of our approach.

This is joint work with Tomasz Olma and Christoph Rothe.