External Validity in Fuzzy Regression Discontinuity Designs
---- Acknowledgments ----
We are grateful for comments by Joshua Angrist, Brigham Frandsen and Arthur Lewbel on an earlier version of this paper. We are are also grateful to Brian Jacob, Lars Lefgren, and Jordan Matsudaira for making available the data used in this paper. Bertanha gratefully acknowledges the financial support received as a B.F. Haley and E.S. Shaw Fellow from the Stanford Institute for Economic Policy Research. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.
---- Disclosure of Financial Relationships for Guido W. Imbens ----
I have consulted for Microsoft Corporation, Facebook, Amazon, and Lilly Corporation.