%0 Journal Article %A Kaffash, Sepideh %A Aktas, Emel %A Tajik, Mohammad %T The impact of oil price changes on efficiency of banks: An application in the Middle East oil exporting countries using SORM-DEA %J RAIRO - Operations Research - Recherche Opérationnelle %D 2020 %P 719-748 %V 54 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2019009/ %R 10.1051/ro/2019009 %G en %F RO_2020__54_3_719_0