Regression modelQuasi-experimental / causal inference

Fuzzy Regression Discontinuity Design

Fuzzy Regression Discontinuity Design (Fuzzy RDD) estimates causal effects when eligibility for a treatment is determined by a threshold on a running variable but actual take-up of that treatment is imperfect — some eligible units do not receive treatment and some ineligible units do. The cutoff acts as an instrument, and the estimand is a Local Average Treatment Effect (LATE) for compliers near the threshold.

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Sources

  1. Hahn, J., Todd, P., & van der Klaauw, W. (2001). Identification and Estimation of Treatment Effects with a Regression-Discontinuity Design. Review of Economic Studies, 68(1), 201-209. DOI: 10.1111/1467-937X.00183
  2. Imbens, G. W., & Lemieux, T. (2008). Regression discontinuity designs: A guide to practice. Journal of Econometrics, 142(2), 615-635. DOI: 10.1016/j.jeconom.2007.05.001

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ScholarGateFuzzy Regression Discontinuity (Fuzzy Regression Discontinuity Design). Retrieved 2026-06-04 from https://scholargate.app/en/causal-inference/fuzzy-regression-discontinuity