TY - JOUR TI - Reconsidering heterogeneity in panel data estimators of the stochastic frontier model AU - William H. Greene JO - Journal of Econometrics PY - 2004 VL - 126 IS - 2 DO - 10.1016/j.jeconom.2004.05.003 UR - https://doi.org/10.1016/j.jeconom.2004.05.003 ER -