TY - JOUR TI - Manipulation of the running variable in the regression discontinuity design: A density test AU - Justin McCrary JO - Journal of Econometrics PY - 2007 VL - 142 IS - 2 DO - 10.1016/j.jeconom.2007.05.005 UR - https://doi.org/10.1016/j.jeconom.2007.05.005 ER -