RT Journal Article T1 A DEA cross-efficiency approach based on bargaining theory A1 Contreras Rubio, Ignacio A1 Lozano, Sebastián A1 Hinojosa, Miguel K1 Data envelopment analysis K1 Cross-efficiency K1 Bargaining theory K1 Kalai- Smorodinsky solution AB Cross-efficiency evaluation is a Data Envelopment Analysis (DEA) approach that enables the efficiency and ranking of Decision-Making Units (DMUs) to assess the possibility of idiosyncratic weighting schemes. However, the existence of multiple optimal weights in multiplier DEA models implies the non-uniqueness of the cross-efficiency evaluation. This is normally dealt with using secondary goals that enable the optimal weighting vectors to be chosen. In this paper, a new method to discriminate between optimal weighting profiles is proposed based on bargaining problems and the Kalai-Smorodinsky solution. In this approach, the input and output multipliers are agreed upon by the peer DMUs. PB Taylor & Francis YR 2021 FD 2021 LK https://hdl.handle.net/10433/19752 UL https://hdl.handle.net/10433/19752 LA en NO I. Contreras, S. Lozano & M. A. Hinojosa (2021) A DEA cross-efficiency approach based on bargaining theory, Journal of the Operational Research Society, 72:5, 1156-1167, DOI: 10.1080/01605682.2020.1755898 NO The research of the authors has been supported by the Spanish Ministry of Science, Innovation and Universities under project PGC2018-095786-B-I00. NO Departamento de Economía, Métodos Cuantitativos e Historia Económica DS RIO RD May 9, 2026