TY - JOUR AU - zhao, Linlin AU - hu, Zhangchen AU - wang, Jun AU - zhuang, Yuliang TI - Estimating the impact of contextual variables on the productivity: An enhanced slack-based DEA model JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2017 SP - 903 EP - 920 VL - 51 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2016063/ DO - 10.1051/ro/2016063 LA - en ID - RO_2017__51_4_903_0 ER -