TY - JOUR TI - Instrumental Variable Estimation of Nonparametric Models AU - Whitney K. Newey AU - James L. Powell JO - Econometrica PY - 2003 VL - 71 IS - 5 DO - 10.1111/1468-0262.00459 UR - https://doi.org/10.1111/1468-0262.00459 ER - TY - JOUR TI - Instrumental Variables Regression with Weak Instruments AU - Douglas Staiger AU - James H. Stock JO - Econometrica PY - 1997 VL - 65 IS - 3 DO - 10.2307/2171753 UR - https://doi.org/10.2307/2171753 ER -