TY - JOUR TI - Why High-Order Polynomials Should Not Be Used in Regression Discontinuity Designs AU - Andrew Gelman AU - Guido W. Imbens JO - Journal of Business and Economic Statistics PY - 2017 VL - 37 IS - 3 DO - 10.1080/07350015.2017.1366909 UR - https://doi.org/10.1080/07350015.2017.1366909 ER -