Jag Bhalla points to this post by Alex Tabarrok pointing to this paper, “The Internal and External Validity of the Regression Discontinuity Design: A Meta-Analysis of 15 Within-Study-Comparisons,” by Duncan Chaplin, Thomas Cook, Jelena Zurovac, Jared Coopersmith, Mariel Finucane, Lauren Vollmer, and Rebecca Morris, which reports that regression discontinuity (RD) estimation performed well in these […] The post “The Internal and External Validity of the Regression Discontinuity Design: A Meta-Analysis…