Saavedra Nieves, AlejandroFiestras-Janeiro, María Gloria2022-03-012022-03-012022Expert Systems with Applications 195 (2022) 116571http://hdl.handle.net/10347/27621This paper addresses several mechanisms for overall ranking Decision Making Units (DMUs) according to the contribution of DMUs to the relative efficiency score of a merger considering aggregate units The possible organization of agents outside each possible merger naturally influences the relative efficiency score, which motivates the use of games in partition function form and specific ranking indices for DMUs based on the Shapley value. Several computational problems arise in their exact computation when the number of DMUs increases. We describe two sampling alternatives to reduce these drawbacks. Finally, we apply these methods to analyse the efficiency of the hotel industry in Spaineng© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)Atribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/DEA modelMultiagent systemPartition function form gameRanking methodSamplingjournal article10.1016/j.eswa.2022.1165710957-4174open access